On the point solutions to your coding problems

  • How to Reverse a JavaScript Array

    You can use the native reverse() function to reverse an array in JavaScript.

    Here is the sample code.

    var list = [1, 2, 3, 4, 5];
    list.reverse();
    // 5,4,3,2,1

    You can store the array in a separate variable using the slice() operator.

    var list = [1, 2, 3, 4, 5];
    var reversedList = list.slice().reverse();
    console.log(list);
    // 1,2,3,4,5
    console.log(reversedList);
    // 5,4,3,2,1

     

  • How to install VSCode in Ubuntu and CentOS Linux

    To install VSCode in Ubuntu, follow the steps mentioned below:

    Step 1: Download the installer

    Navigate to the official VSCode website and download the installer. Click here to navigate to the download page.

    Step 2: Run the Installer

    If you are using the latest Ubuntu or Debian Linux distribution, then run the following command to install VSCode.

    sudo apt install ./<location_to_downloaded_file>.deb

    If you are using the old version of Ubuntu or Debian Linux distribution, then run the following command.

    sudo dpkg -i <location_to_downloaded_file>.deb
    sudo apt-get install -f

    If you are using CentOS-based distribution Linux, you can use the following command to install VSCode.

    sudo rpm --import https://packages.microsoft.com/keys/microsoft.asc
    sudo sh -c 'echo -e "[code]\nname=Visual Studio Code\nbaseurl=https://packages.microsoft.com/yumrepos/vscode\nenabled=1\ngpgcheck=1\ngpgkey=https://packages.microsoft.com/keys/microsoft.asc" > /etc/yum.repos.d/vscode.repo'

    Now, you can run the VSCode in your system and start coding.

     

  • Clone Arrays in JavaScript

    You can use the following code to clone arrays in JavaScript.

    var arr =  [ 10, 20, 30, 4, 5, 6, 112, 333, 4, 2, 5, 66 ]
    
    var arr2 = arr.slice(0);
    
    console.log('Actual array ', arr);
    console.log('Cloned array', arr2);