How To Check If An Array Exists In Vba

Most arrays have only one dimension, but in VBA arrays can have up to 60 dimensions. Hold down the ALT + F11 keys to open the Microsoft Visual Basic for Applications window. Would it help to build an array of all the labels in the OnOpen event of the form? In the array mark whether it is a control with a label or not. These can be used to find the number of times (first occurrence only) a particular string exists in a given range of cells. The code below shows how to retrieve the extension of a file, define an array with "allowed" extensions, and match the extension of the file to the array. Each item is associated with a unique key. Introduction. contains(mystring) I wrote the fol. If you aren't able to find what you need here, you can check out the main programming section for additional VB code and tutorials. Mar 25, 2018 · If given key does not exists in dictionary then it returns the passed default value argument. However, you could check whether your recordset has any rows before doing the assignment - you can usually check the. Using Arrays in Outlook macros. Check if file Exists in Location using Excel VBA – Example Cases:. How to check if sheet name exists with VBA In Excel, you can't have two sheets with same name in the same workbook. At times, the worksheet range whose values you want to put into a VBA array will consist of a group of contiguous columns and contiguous rows. If you want to test the code you must copy the code and functions in a standard module of your workbook's project. Is there a way that I can check for the occurance of a specific value in a collection object like an Array or a Range in excel through VBA code?. You can also use the native VBA FileCopy procedure to copy files. You can use FileSystemObject or Dir function to check if file Exists in Location using Excel VBA. Hi @Martin-Hogge you can use Exists for objects and check for array bounds with Count. To copy a sheet in Excel with one of the above macros, you can either insert the VBA code into your own book or run a macro from our sample workbook. An array is a group of variables. VBA has 5 methods to create an array - the VBA method 'Array' - the VBA method 'Split' - declare an array variable - assign the content of an object (in VBA, Excel of Word) with array like properties to a variable - pass arguments to a macro or functions, that stores the arguments in a paramarray. This post shows how to define an array, and to loop through each of the items in it. How to Create and Manage Multidimensional Arrays Using Visual Basics How to Create and Manage Multidimensional Arrays Using Visual Basics In this article we will get more detailed into arrays, how they work, creating multidimensional arrays, and looping through them to work with their data. VBA If Else statements. Well here is a fast way of checking the Array. Mar 25, 2016 · VBA To Check If Selected Cells Are Empty March 25, 2016 / Chris Newman. So you have a list of characters who won (survived) this Game of Thrones. The VBA FSO object can be used to check if a File, Folder or Drive exists. You can easily modify the range to include multiple. Aug 05, 2014 · VBA - Check if a value exists in an array Introduction To check if a value exists in an array, we can loop through its elements. We have Ned's query in. It doesn't seem to be working in this case. The ability of a user-defined function (UDF) to return an array has been part of VBA since it was first released in Excel 5 in 1994. Recommended Articles. An array is a group of variables. Jul 03, 2012 · Checking an item exists adds about 20-25% to the time required to add an item; the. One of the coolest, and probably most used, functions of Collections is their ability to provide you with a unique list. The vlook function can easily help you in determining if a value that is in one column is in another. Instead you must re-dimension the. i have developed code and userforms to automate this process. Example: 'I use variant array here so that the data types on the page will be captured 'note rich text formatting will not be captured dim r. Determine if a sheet exists in a workbook using VBA in Microsoft Excel. When you take advantage of that feature in a cell formula, it can be quite a time-saver compared to returning a single value in a bunch of cells. Back in my early days of teaching myself how to write VBA, I found. In trying to get a Boolean value to use in my query for whether or not a record's ID value is found in another query, I find Exists works great — as long as the table I'm using isn't also in the query used in the Exists clause. Names("ActiveCells"). One is the push model, where you create a rowset with the metadata, fill the rowset with your data, and in the regular parameter area, you pass the rowset pointer. If DotNetArray. Do a forum search. Every time the function is called the array is redimmed so it starts with an 'empty' array and then fills it. It doesn't seem to be working in this case. Let’s use get() this to check if given key exists in dictionary,. If there is a question as to whether the object EXISTS, that would primarily be a variable scope issue, would it not there Mr. If you have no concern for upper- or lowercase text, there are several ways to check if a cell contains text. This is a community of tens of thousands of software programmers and website developers including Wrox book authors and readers. Mar 25, 2018 · If given key does not exists in dictionary then it returns the passed default value argument. If the Byte array is empty, StrPtr() returns 0 ; otherwise, it returns a non-zero value (however, it's not the address to the first element). check the size of the resulting array VBA: check if a chart series exists, if not. This eliminates the need of writing the same code over and over again. Exists method, which returns True or False depending on (you guessed it) whether or not the ID is there. Method #1 Set Temporary Value using VBA. They are typically used to check for specific conditions and if all of them evaluate to FALSE, the steps specified in the ELSE condition will finally get executed. “A list is only as strong as its weakest link” – Donald Knuth. A useful post, especially the exists() function. It consists of 5 rows and 2 columns. The first issue is pretty easy to get around: Check Collection Key exists. If not, you can take this introductory course on Excel VBA. I can't figure out a way to take an Excel workbook and go through each row to see if it exists in a SharePoint list and if so update it, or if it doesn't create a new item. Collection types are very useful because it is easy to add items to it and iterate over the items in the collection for whatever purpose you have in mind. it require trusting access to the vba project object model but if you are doing macros all day, this is a minor consideration. Array(Empty, Empty, Empty, " table")) I see that the first table in the Database is passed into rs(2). The native VBA approach is better for creating binary files or writing to files. Unlike simple arrays, ArrayLists are designed to have no fixed size – contents can be added or removed while the program is running. 'Reusable function to check if a folder exists Function doesFolderExist(folderPath) As Boolean DoesFolderExist = Dir(folderPath, vbDirectory) <> "" End Function. Follwoing are the two different methods. Let's say you want to ensure that a column contains text, not numbers. Re: Determine if array is empty Showing 1-37 of 37 messages. This function will return a Boolean - True or False as a result. However, you could check whether your recordset has any rows before doing the assignment - you can usually check the. May I ask why you have not added the last 3 lines of >>>this sample<<< you seem to have found already? Your code ends with. Jan 24, 2011 · I have some data that I am putting on a treeview and have a checkbox on the page to decide if the user wants to order the nodes by date or type. Visual Basic for Applications is an important object oriented and event driven programming language. You can check if a cell is empty with isempty(cellArray{index1,index2,…}). GitHub is home to over 28 million developers working together to host and review code, manage projects, and build software together. All arrays must start at index. Replace the MsgBox for the code that you want to run when the folder, file or sheet exists or not. put the sorted items in an Array using. VLOOKUP Example: Let's say, Ned Stark wants to know if his child Rob Stark has won the GAME OF THRONES or not. I have an int array in vb. Work with open item or selected item. So many more things can be done with arrays (resizing, adding, deleting items, etc. We use the Print function to write the text from the Excel file to the text file. Validate Named Range Exists. Jul 03, 2012 · Checking an item exists adds about 20-25% to the time required to add an item; the. If there really is a column today that means that, unlike last year, the neighbors and their errant fireworks didn't set fire to the Scripting House. Basically, an array is a set of elements that is in two dimensions. But the index 50, tried next, causes an IndexOutOfRangeException. Value ‘Assign the information to process to our variable arrValues() = Split(StringToProcess, ” “) ‘Parse the string into a string array using a space delimiter. Follwoing are the examples to show you how to check If a file is already exists in a folder or not. If you need to store a table of data you would need a two dimensional array as tables are made up of rows and columns. In VBScript, the subscript in Dim statement really is what will be returned via UBound function, which is namely the highest subscript one may use to refer to an element in the array and NOT the size of it. Visual Basic for Applications (VBA) is an implementation of Microsoft's event-driven programming language Visual Basic 6, which was declared legacy in 2008, and its associated integrated development environment (IDE). Usually, the number of elements in the array is determined while your code is running. MS Excel 2003: Check to see if a file exists based on a value in column A This Excel tutorial explains how to write a macro to check to see if a file exists based on a value in Excel 2003 and older versions (with screenshots and step-by-step instructions). VBA and non-default Outlook Folders. Aug 23, 2017 · 'Loop through Array, copying rows to Sheet5 For copyRow = 1 To percRowsto this: 'Loop through Array, copying rows to Sheet5 For copyRow = 1 To 5. How to read MAPI properties that are not exposed in the VBA Object model using the Property Accessor object. , C), you will find that VBA arrays work pretty much the same. The primary difference is that a VBA array is more than just a sequential series of bytes. Use ArrayList. Paste clipboard contents. It consists of 5 rows and 2 columns. List of useful VBA tips in Excel of the Variables and Arrays category like check if in array, array position, array sort. "Open file for Append" will first check if the file exists. Possible Duplicate: How to search for string in MS Access VBA array I am currently working on an Excel macro, and I could not find a way to do like if array. EOF property to see if any rows have been returned. 0 This website is not affiliated with Stack Overflow. How do I enter data into one table only if a record exists in the primary table. All we have to do to solve this issue, is to check whether we have a fixed-size array that is initialized in a manner similar to the following example. One-dimensional Array. In a Range, you can use the Find method (analogous to the Find you do in the user interface with Cntl+F), for which you will find hundreds of examples here on Oz. Word-VBA Code Samples for Newbies & Others by JoJo Zawawi. But how do we get the length of an array in Excel VBA? We use two separate. SQL Query to Check and Delete if a Table or Database already exists in SQL Server Use caution when dropping tables. Considering that the title of this thread is, "Visual Basic: How do I check whether an Object exists?", then you should realize why I mentioned the scope. Checking if index exists in an array Hi, I have a string array to be filled with the information from GetCommandLineArgs() so I can see if my app should open a file if it's been provided by one as it starts up. Note that it isn't always necessary to test whether an element exists. Active today. The first issue is pretty easy to get around: Check Collection Key exists. Can't seem to find any proper help in MS Office's help and other search engines. No, I don't believe there is once you do that assignment. To determine whether a string array has empty strings (string elements with zero characters), use the == operator. Press Alt + F11 to display the Microsoft Visual Basic for Applications window. If you have no concern for upper- or lowercase text, there are several ways to check if a cell contains text. You can select code in your VBA window, press Tab, then copy and paste into your thread or comment. Instead of always creating a new collection unless you have to, VBA for Microsoft Excel comes equipped with many collections so that you almost may never need to create your own collection. The cornerstone of any Microsoft Access application is the form. You can use FileSystemObject or Dir function to check if file Exists in Location using Excel VBA. For an array, you have to traverse the elements in a loop. How to check if a specified value exists in a range and then return the value in the adjacent cell. If you do not, the activeworkbook will be used. Exists method of the dictionary object is extremely useful and one of the main reasons why we generally prefer to work with dictionary objects rather than collection objects in VBA. The remainder of the post provides the most complete guide you will find on the VBA arrays. Then I have a loop to go backwards through a large column of data deleting any rows where the value in the cell doesn't match any of the terms in the array. VBA Check File Exists helps to Check if file Exists in Location using Excel VBA. The following VBA code calls the doesFolderExist function from above and prints True (the folder exists) or False (the folder does not exist) to the Immediate window. Microsoft Access VBA Referring to Forms and Controls by FMS Development Team. You can also use the native VBA FileCopy procedure to copy files. To determine whether a string array has empty strings (string elements with zero characters), use the == operator. In excel we use arrays in our day to day lives. It is always added to some other value to indicate an array of a particular type. This is because it's (fairly) easy to access each array position in a loop - you just use the loop variable between the round brackets of the array. Then you can query the array instead of the objects and it won't take a noticeable amount of time to do that no matter how many times you do it. Getting Started You can do a lot with Excel simply using formulas but there comes a time when you notice that you are doing a standard job involving moving or sorting data and you can't find an easy way of reducing it to a set of formulas. The following example specifies the match conditions for the Exists method using lambda expressions to check whether a planet starts with a given letter or whether the planet is found on the given array. How to check: Due a quick check to see if the value that you are looking up was already entered before. ' Filter an array of names for entries that do not contain "Smith". If you had a cube of data then you would require three dimensions. So: The index 2 can be safely accessed. For example, to check if a workbook was already opened, check if it's in the collection of open workbooks ( Application. VBA-Excel: Arrays - Two Dimension, Dynamic Array by SJ · Published August 22, 2013 · Updated January 30, 2015 For creating two dimensional dynamic array in excel, follow the steps below:. This post will guide you how to use VLOOKUP function to check if a value exists in a given range of cells in Excel. The function that allows us to check if a file or folder exists is know as the DIR function. You know: one of those rectangular boxes with slots to slide CDs in, each above another. Your program then fails, or returns inaccurate results. Check if file Exists in Location using Excel VBA – Example Cases:. Thanks for the helpful article! I found a strange thing, though. Next, while in Excel, type Alt-F11 on your keyboard to open the VBA IDE. One-dimensional Array. Here's my code: To test, I filled an array with 100,000 random strings, picked one of the strings to find, then timed JP. Next, in the VBA Integrated Development Environment (IDE), click Insert->Class Module. We use the Print function to write the text from the Excel file to the text file. OLE DB offers two models for passing TVPs. When you take advantage of that feature in a cell formula, it can be quite a time-saver compared to returning a si. This is because it's (fairly) easy to access each array position in a loop - you just use the loop variable between the round brackets of the array. Print "Paul is in the array" Else Debug. 'to check if given key exists in the dictionary If d1. To perform a. Apr 27, 2012 · So we have to take note of this fact and translate the coordinates so that any address from the named range is mapped correctly in the memory array (usedRangeColOffset, usedRangeColOffset). VBA Check File Exists helps to Check if file Exists in Location using Excel VBA. The cornerstone of any Microsoft Access application is the form. VBA - User Defined Functions - A function is a group of reusable code which can be called anywhere in your program. Working with All Items in a Folder or Selected Items. Workbooks ), to check if a certain…. Considering that the title of this thread is, "Visual Basic: How do I check whether an Object exists?", then you should realize why I mentioned the scope. This example uses the IsArray function to check if a variable is an array. In the window, click Insert > Module to show a new module window, then copy the following VBA code into the module window. A Collection is an type that contains a set of related objects - in memory. The function returns an array of integers that hold the image width and height in pixels. An array is a lot like a CD rack. I tried eveything and i'm stuck. Instead you must re-dimension the. Check if a value exists in an array in Ruby. There are multiple ways of checking if a worksheet exists. First i created an array from a range (Range("a1:c10")Then i need to check if a string is in the array. Back in my early days of teaching myself how to write VBA, I found. This eliminates the need of writing the same code over and over again. Performing a task in Visual Basic (VB) or Visual Basic for Applications (VBA) involves manipulating various types of objects, each of which may have several different properties and methods. Visual Basic for Applications (VBA) facilitates many useful data structures - its not just VBA Arrays you can use. To calculate the length of an array in excel we either do it manually or use some functions to do so. Gomez If you've been working with (or learning) Visual Basic for Applications, you're probably aware of the importance of having a solid knowledge of certain topics that influence data storage and manipulation. Useful Functions for Working with Arrays in VBA The Array function is an easy way to create and fill an array with values. An array is a lot like a CD rack. Note that it isn't always necessary to test whether an element exists. Apr 27, 2012 · So we have to take note of this fact and translate the coordinates so that any address from the named range is mapped correctly in the memory array (usedRangeColOffset, usedRangeColOffset). Dictionary to store unique array item. You can even create a two-dimensional array where each subarray has a different length or different type, also known as a heterogeneous array in Java. For example, to check if a workbook was already opened, check if it's in the collection of open workbooks ( Application. If you aren't able to find what you need here, you can check out the main programming section for additional VB code and tutorials. Although arrays can be re-dimensioned in VB. Re: Determine if array is empty > Nice, and very usable to check for an array with just strings. Delete row if a specific value exist (VBA) Copy the code in a Standard module of your workbook, if you just started with VBA see this page. This tutorial will be using Excel as the application, but the same principles are available in Word, PowerPoint and anything else that uses VBA. Jun 04, 2017 · Put the VBA code above on form or in the Module and call it on the click button on your Access file where you want to check if this form exists before call process. In this VBA Excel automation, we are copying the files from source to target folder. For a Long number, VBA may well use the value being held; for an object variable it will check to see if there is an actual object assigned to the variable and, if so, often invoke the default property of the object and then decide what to do based on its type. Recommended Articles. Check whether a string array contains an item (without a loop) To determine whether a String array contains a given item it seems that you can't avoid writing a loop. And also see the step by step instructions to run vba code in the visual basic editor(VBE) window. The second is more difficult. NET, the ArrayList class is used to create an array (or list) of objects. The code below shows how to retrieve the extension of a file, define an array with "allowed" extensions, and match the extension of the file to the array. We will discuss about how to check if a key exists and how to count the number of items in a dictionary. In VBA you can start an array from the index 1, while in VB. Firstly, let’s get VBA open in Microsoft Excel. Launching GitHub Desktop If nothing happens, download GitHub Desktop and try again. Pass all values as parameters to the function, and it'll return a one-dimensional array with these values as elements, in the same order as they were passed to the function. So in cases where your text or value is not found. com with /command? I have automated my downloads and if the file does not exist, my process "hangs. add the items of the Array's sorting 'column' in the Arraylist 2. For other kinds of arrays you'll have to come up with an alternative solution as previously mentioned. Method #1 Set Temporary Value using VBA. Tweet As a web site developer, I sometimes need to check if a specific file exists on a remote server. Back in my early days of teaching myself how to write VBA, I found. Dec 04, 2018 · How to use the VBA Editor. How to check: Due a quick check to see if the value that you are looking up was already entered before. Searching the internet will yield several examples of doing either, but this is a routine that I wrote in order to have one routine to test either. I'll cover the following topics in the code samples below: Microsoft Word Word VBA CodeMicrosoft Word, Word Re Word VBA, Shapes, Macros, and VBA. Types of Arrays. Great tips, another amazingly simple method of speeding up excel VBA code is to remove the program to module interaction by setting up your module to declare the working sheet inside of a variant array. User will be prompted is mismatch exists. How to check if a specified value exists in a range and then return the value in the adjacent cell. If you aren't able to find what you need here, you can check out the main programming section for additional VB code and tutorials. In excel we use arrays in our day to day lives. Initialize the variables for source and target folder path. Now we are going to solve another issue due to a difference between VBA and VB. Use Redim preserve to expand your array by 1 and add your recently checked text value; Here is a small general example. The remainder of the post provides the most complete guide you will find on the VBA arrays. List is a generic implementation of ArrayList. No, I don't believe there is once you do that assignment. But the index 50, tried next, causes an IndexOutOfRangeException. The handling of the array SheetsFound probably deserves some clarification. Is there a way that I can check for the occurance of a specific value in a collection object like an Array or a Range in excel through VBA code? For example I would like to check programatically if the value "orange" is present in an array by name Fruits(), where the array Fruits (3)=("mango", "banana", "apple"). Program to check if an array is sorted or not (Iterative and Recursive) Given an array of size n , write a program to check if it is sorted in ascending order or not. You can use FileSystemObject or Dir function to check if file Exists in Location using Excel VBA. In section 2 you will learn all the VBA vocabulary that is essential to work with business data (accounting, sales, production and others). You may have to register before you can post: click the register link above to proceed. The remainder of the post provides the most complete guide you will find on the VBA arrays. So you have a list of characters who won (survived) this Game of Thrones. The following example specifies the match conditions for the Exists method using lambda expressions to check whether a planet starts with a given letter or whether the planet is found on the given array. Gomez In this VBA Tutorial, you learn how to delete sheets in Excel (in different ways) with macros. Jul 10, 2016 · Arrays in VBA are a little finicky and require a different procedure than programming langauges like C or Python. To check whether a Byte array is empty, the simplest way is to use the VBA function StrPtr(). Adding items to a VBA array is just much easier when using the arraylist class. What This VBA Code Does. Explains the difference between Nothing, Empty, Missing, Null, Zero, and a zero-length string, when writing VBA code in Microsoft Access Tips for Serious Users Provided by Allen Browne, March 2009. EOF property to see if any rows have been returned. If the output file already exists, the user is prompted to either overwrite the existing file or replace it. This is a simple and self-explanatory macro, in this I have simply divided a text string with the 4 methods that I have described above. Determine if a Value Exists in an Array without Looping. Collections are a powerful feature in VBA. Check whether a string array contains an item (without a loop) To determine whether a String array contains a given item it seems that you can't avoid writing a loop. test if record exists does not work. We are using 2 methods to check folder exists or not. An array is a lot like a CD rack. This is a simple and self-explanatory macro, in this I have simply divided a text string with the 4 methods that I have described above. May 29, 2018 · The VLOOKUP function can be used to check if a given values exists in a range of cell, then return the value in a specified column that is specified by the third argument in the function. If qualified with the type-library name, Array is unaffected by Option Base. And the (complete) sample ends with. We have Ned’s query in. How to check if sheet name exists with VBA In Excel, you can't have two sheets with same name in the same workbook. A useful post, especially the exists() function. Your program then fails, or returns inaccurate results. sort the items using. With DIR you get the ability to loop through each file inside a folder (we cover this in detail in the VBA course). You are currently viewing the Excel VBA section of the Wrox Programmer to Programmer discussions. Why I am thinking it is important to mention is because, if you do not put this check and by mistake your file name is not correct, then Open File statement will create a new TextFile in the same location with your provided name and write the content in that new file. Using a IF function with ELSEIF and ELSE: in VBA. If yes, get the names of the files. Basically, there it is a one-page profile that m. Pass all values as parameters to the function, and it'll return a one-dimensional array with these values as elements, in the same order as they were passed to the function. Aug 16, 2017 · Therefore, the array of objects would have several objects enclosed in curly brackets that are separated by commas and all objects are enclosed in normal brackets (the array). Re: Determine if array is empty > Nice, and very usable to check for an array with just strings. Apr 03, 2014 · VBA Array Length : How to Efficiently Assign and Use Array Lengths. Considering that the title of this thread is, "Visual Basic: How do I check whether an Object exists?", then you should realize why I mentioned the scope. The cornerstone of any Microsoft Access application is the form. The following table provides a quick reference to using arrays in VBA. Use VBA to read text from a file. What about VBA? Well, it just so happens that there is a form of associative array called the Dictionary that VBA programmers can use. This post will guide you how to use VLOOKUP function to check if a value exists in a given range of cells in Excel. The following example specifies the match conditions for the Exists method using lambda expressions to check whether a planet starts with a given letter or whether the planet is found on the given array. Forms are used to display and edit data, and to call other forms. NET, you cannot. Additional dimensions are added to an array by declaring multiple sets of bounds separated by commas (example below). This post will teach you how to work with excel arrays in visual basic for applications (VBA). Check If File Exists Powershell: Delete Folder if Exists you might want to check user input for asterisk *, otherwise, it. Apr 03, 2014 · VBA Array Length : How to Efficiently Assign and Use Array Lengths. You can use ISNUMBER to check that a cell contains a numeric value, or that the result of another function is a number. See the ReferenceIsValid. In array, you would have to create your own function to check if a value is in an array. Check if property exist #56. How to check if a specified value exists in a range and then return the value in the adjacent cell. Here we discuss how to use Excel VBA Check File Exists Function along with practical examples and downloadable excel template. I want a function with a small footprint that I or anyone who wants to use it, can simply paste into a. For example you can open the Workbook to copy values from and then close the. Each item is associated with a unique key. MS Excel 2003: Check to see if a file exists based on a value in column A This Excel tutorial explains how to write a macro to check to see if a file exists based on a value in Excel 2003 and older versions (with screenshots and step-by-step instructions). In VBA you can start an array from the index 1, while in VB. Collections are a powerful feature in VBA. Range('A1:A5'). All arrays must start at index. Excel's MATCH function searches for a value in a column or array and returns its relative position based on your chosen match type. add the items of the Array's sorting 'column' in the Arraylist 2. Free VBA Course: Using Arrays in VBA , Demonstration of Execution Speed with Arrays, Saving Data in an Array. What This VBA Code Does. For example you can open the Workbook to copy values from and then close the. Jun 08, 2005 · How to check if an Array exists? Visual FoxPro > To check if something is array then you need to check it with a function that operates on arrays. Excel IsArray Function: Determine if a Variable is an Array. Basically; each key of a dictionary is unique; so when you try to add a new key that already exists, it won t create a new element in the dictionary. Use DirectCast to convert ArrayList to array: 8. How to check if a specified value exists in a range and then return the value in the adjacent cell. After mentioning the file path in the computer what if someone deletes the file or change the folder path of the file, obviously, our code will throw an error in such cases. If you are new VBA (or VB) arrays, but have experience with arrays in other programming languages (e. clear the ArrayList 5. If you are a moderator, see our Moderator Guidelines page. All we have to do to solve this issue, is to check whether we have a fixed-size array that is initialized in a manner similar to the following example. Check if a value is in an array or not with Excel VBA. When creating routines, it is commonly helpful to check if a file or directory (folder) exists before attempting to perform some action. In excel we use arrays in our day to day lives.