Let’s say the following is our nested array −const arrayObject = [    [       {          Name: "John"       },       {          countryName: "US"       }    ],    [       { ... Read More

To get the value of H1 to JavaScript variable, you can use −document.getElementById().innerHTML.Let’s say the following is our H1 heading − This is the demo program of JavaScript ........Now, let’s get the H1 value using the below code −Example Live Demo Document ... Read More

Let’s say we have records with BOTID and Name of assigned users −let objectArray = [    { BOTID: "56", Name: "John" },    { BOTID: "57", Name: "David" },    { BOTID: "58", Name: "Sam"},    { BOTID: "59", Name: "Mike" },    { BOTID: "60", Name: "Bob" } ... Read More

To add a newline in Unordered List, use the document.querySelector().append(). Following is the code −Example Live Demo Document    h1{       font-size: 2.50rem;    }    h2, label{       font-size: 1.50rem;    } Adding Name Demo ... Read More

At first, set the keys −const name = ['Name1', 'Name2'];Now, map keys to the same value using for loop as in the below code −Exampleconst name = ['Name1', 'Name2']; const keyValueObject = {}; for (const k of name){    keyValueObject[k] = 'John'; } console.log(keyValueObject);To run the above program, you need ... Read More

To remove and add new HTML tags, use the concept of hide() and show().Let’s say the following are our buttons −Click Me To hide above content Click Me To show above content To remove and add tags on button clicks, use hie() and show() −$(document).ready(function(){    $("#hide").click(function(){     ... Read More

Let’s say the following are our values −let subjectNames = ['JavaScript', 'Angular', 'AngularJS', 'Java'];To count the non-empty and non-null values, use the forEach(). The syntax is as follows −yourArrayName.forEach(anyVariableName =>{    yourStatement1    .    .    .    N    } } )Now, use the if statement and check ... Read More

Let’s say, we have the following objects in JavaScript −ObjectValue =[    { "id": "101", "details": { Name:"John", subjectName:"JavaScript" }},    { "id": "102", "details": { Name:"David", subjectName:"MongoDB" }},    { "id": "103" } ]To remove an object using filter(), the code is as follows −ExampleObjectValue =[    { "id": ... Read More

For empty iframe src, use the element and set it like the following for an empty src −Example Live Demo Document To run the above program, save the file name “anyName.html(index.html)” and right click on the file. ... Read More

To transform object of objects to object of array of objects, use the concept of Object.fromEntries() along with map().Exampleconst studentDetails = {    'details1': {Name: "John", CountryName: "US"},    'details2': {Name: "David", CountryName: "AUS"},    'details3': {Name: "Bob", CountryName: "UK"}, }; console.log(    Object.fromEntries(Object.entries(studentDetails).map(([key,    value]) => [key, [value]])) );To ... Read More