Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
We know that PowerShell executes commands sequentially until we specify some parallel Jobs but sometimes the next command executes before the First command because the first command might be taking a long time to retrieve the data. In that case, if you want the previous command to finish first and then the next command to get executed, you can use PowerShell Job functionality.For example, we need to write a script to ask for the user input to terminate process ID but the program should retrieve the process IDs first.Example$job = Start-Job {Get-Process} Wait-Job $job | Out-Null Receive-Job $job $id = ... Read More
To get the timezone of the System, you can use the Get-TimeZone command.ExamplePS C:\> Get-TimeZone Id : Mountain Standard Time DisplayName : (UTC-07:00) Mountain Time (US & Canada) StandardName : Mountain Standard Time DaylightName : Mountain Daylight Time BaseUtcOffset : -07:00:00 SupportsDaylightSavingTime : TrueTo Set the TimeZone of the System, you can you the ID or the Name of the ... Read More
Like the Parameter alias, we can also set the function alias name to refer to the function as a different name.Examplefunction Test-NewConnection{ [CmdletBinding()] [Alias("TC")] param( [Parameter(Mandatory=$true)] [String]$Server ) Write-Output "Testing $server connection" }Now, instead of the Test-NewConnection function name, you can directly use the function alias “TC” as shown below.PS C:\> Tc -Server "Test1-win2k16" Testing Test1-win2k16 connection
PowerShell alias is a good way to use the shortcut name for the Parameter instead of writing the full name of the parameter. For example, you can refer to Server as ServerName, AppID as the ApplicationID.So you don’t have to use the whole name of the parameter and it is easy to remember as well.Examplefunction Aliastest{ param( [parameter(Mandatory=$true)] [Alias("Server")] [string]$ServerName ) Write-Output "Server name is $ServerName" }Now we can use the Server instead of ServerName while passing the arguments.PS C:\> Aliastest -server "Test1-Win2k16" Server name is Test1-Win2k16
To find the network adapter driver version using PowerShell, we can use the Get-NetAdapter cmdlet. First, let look at how the network adapter driver version looks like from GUI.Get-NetAdapter will retrieve all the Physical and Virtual network adapters unless specified.This cmdlet has a property called DriverVersion, DriverDate, and DriverProvider. You can select it.ExampleGet-NetAdapter | Select Name, InterfaceDescription, DriverVersion, DriverDate, DriverProviderOutputName : Wi-Fi InterfaceDescription : Intel(R) Wi-Fi 6 AX201 160MHz DriverVersion : 21.80.2.1 DriverDate : 2020-02-25 DriverProvider ... Read More
Yes, you can pass default parameters in nested objects.Following is the code −ExampleFollowing is the code −function callBackFunctionDemo({ cl: { callFunctionName = "callBackFunction", values = 100 } = {} } = {}) { console.log(callFunctionName); console.log(values); } //This will print the default value. // 100 callBackFunctionDemo(); //This will print the given value. //500 callBackFunctionDemo({ cl: { values: 500 } });To run the above program, you need to use the following command −node fileName.js.Here, my file name is demo296.js.OutputThis will produce the following output on console −PS C:\Users\Amit\javascript-code> node demo296.js callBackFunction 100 callBackFunction 500
Let’s say our original string is the following with repeated letters −var values = "DDAAVIDMMMILLERRRRR";We want to remove the repeated letters and precede letters with numbers. For this, use replace() along with regular expression.ExampleFollowing is the code −var values = "DDAAVIDMMMILLERRRRR"; var precedingNumbersInString = values.replace(/(.)\1+/g, obj => obj.length + obj[0]); console.log("The original string value=" + values); console.log("String value after preceding the numbers ="); console.log(precedingNumbersInString);To run the above program, you need to use the following command −node fileName.js. Here, my file name is demo295.js.OutputThis will produce the following output on console −PS C:\Users\Amit\javascript-code> node demo295.js The original string value=DDAAVIDMMMILLERRRRR String value ... Read More
For this, use Object.keys() and set one key on each iteration as null using a for loop..ExampleFollowing is the code −var objectValues = { "name1": "John", "name2": "David", "address1": "US", "address2": "UK" } for (var tempKey of Object.keys(objectValues)) { var inEachIterationSetOneFieldValueWithNull = { ...objectValues, [tempKey]: null }; console.log(inEachIterationSetOneFieldValueWithNull); }To run the above program, you need to use the following command −node fileName.js.Here, my file name is demo294.js.OutputThis will produce the following output on console −PS C:\Users\Amit\javascript-code> node demo294.js { name1: null, name2: 'David', address1: 'US', address2: 'UK' ... Read More
Use localStorage.setItem(“anyKeyName”, yourValue) to set the value in local storage and if you want to fetch value then you can use localStorage.getItem(“yourKeyName”)ExampleFollowing is the code − Live Demo Document var textBoxNameHTML = document.getElementById('txtName'); textBoxNameHTML.addEventListener('change', (e) => { localStorage.setItem("textBoxValue", e.target.value); }); To run the above program, save the file name “anyName.html(index.html)”. Right click on the file and select the option “Open with Live Server” in VS Code editor.OutputThis will produce the following output on console −Now, I ... Read More
Let’s say we have the following array −var studentDetails = [ [89, "John"], [78, "John"], [94, "John"], [47, "John"], [33, "John"] ];And we need to sort the array on the basis of the first item i.e. 89, 78, 94, etc. For this, use sort().ExampleFollowing is the code −var studentDetails = [ [89, "John"], [78, "John"], [94, "John"], [47, "John"], [33, "John"] ]; studentDetails.sort((first, second) => second[0] - first[0]) console.log(studentDetails);To run the above program, you need to use the ... Read More