Following is the code to group objects based on a value in JavaScript −Example Live Demo Document    body {       font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;    }    .result {       font-size: 18px;       font-weight: 500;       color: rebeccapurple;    } Group objects based on a value in JavaScript { name: 'Rohan', age: 18 }, { name: 'Mohan', age: 20 }, { name: 'Shawn', age: 18 }, { name: 'Michael', age: 18 }, { name: 'David', age: 20 } CLICK ... Read More

Following is the code to multiply two arrays in JavaScript −Example Live Demo Document    body {       font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;    }    .result, .sample {       font-size: 18px;       font-weight: 500;       color: rebeccapurple;    }    .result {       color: red;    } Multiply two Arrays in JavaScript CLICK HERE Click the above button to multiply the above two arrays    let BtnEle = document.querySelector(".Btn");    let resEle = document.querySelector(".result");    let sampleEle ... Read More

Following is the code to sort JavaScript object by length of array properties −Example Live Demo Document    body {       font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;    } Sorting JavaScript object by length of array properties CLICK HERE Click the above button to sort the objects inside arrObj based on Subject array length    let BtnEle = document.querySelector(".Btn");    let arrObj = [       { name: "Rohan", Subject: ["Maths", "Science", "EVS", "SST"] },       { name: "Mohan", Subject: ["Maths", "Science", "SST"] },     ... Read More

The debugger statement in JavaScript is used for setting a breakpoint in the code. The code stops execution as soon as it encounters the debugger statement and calls the debugger function (if available).Following is the code to implement debugger statement in JavaScript −Example Live Demo Document    body {       font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;    }    .result {       font-size: 20px;       font-weight: 500;       color: blueviolet;    } Debugger statement in JavaScript. CLICK HERE Click on the above ... Read More

The yield* expression is used to refer to another generator or iterable object.Following is the code to implement yield* expression/keyword in JavaScript −Example Live Demo Document    body {       font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;    }    .result {       font-size: 20px;       font-weight: 500;       color: blueviolet;    } yield* keyword in JavaScript CLICK HERE Click on the above button to iterate over test2 and see the value yielded    let resEle = document.querySelector(".result");    let BtnEle = ... Read More

The new.target is a metaproperty that allows us to determine at runtime whether a function or constructor was called using the new keyword or not.Following is the code for new.target in JavaScript −Example Live Demo Document    body {       font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;    }    .result {       font-size: 20px;       font-weight: 500;       color: blueviolet;    } new.target in JavaScript. CLICK HERE Click on the above button to call the Student constructor without the new keyword ... Read More

The spread operator in function calls enhances the function parameter handling. The spread operator allows you to expand an array or any iterable across zero or more arguments in a function call. This article will guide you on using the spread operator in a function call. The spread operator is a powerful feature of JavaScript that allows one to perform operations for complex and lengthy code in a simple single line of code. The spread operator is denoted by the (...) (triple dot) symbol. Syntax The basic syntax of spread operator for function calls is mentioned below: functionName(...iterableObject) ... Read More

An object initializer is an expression that allow us to initialize a newly created object. It is a comma-separated list of zero or more pairs of property names and associated values of an object enclosed in a pair of curly braces {}.Following is the code for object initializer in JavaScript.Example Live Demo Document    body {       font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;    }    .result {       font-size: 20px;       font-weight: 500;       color: blueviolet;    } Object initializer in JavaScript ... Read More

Following is the code for accessing an array returned by a function in JavaScript −Example Live Demo Document    body {       font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;    }    .result {       font-size: 20px;       font-weight: 500;       color: blueviolet;    } Accessing an array returned by a function in JavaScript CLICK HERE Click on the above button to return an array from retTable() function and access it    let resEle = document.querySelector(".result");    let BtnEle = document.querySelector(".Btn");    function retTable(num) {       let tempNum = [];       for (i = 1; i {       let tableArr = retTable(5);       resEle.innerHTML = "tableArr = " + tableArr;    }); OutputOn clicking the ‘CLICK HERE’ button −

The loose equality operator ‘==’ allows us to compare two or more operands by converting their value to a common type first and then checking for the equality between them.strict equality operator ‘===’ allows us to compare two or more operands by checking the equality between the values as well as their types . It returns true only if the values and the type both match with the other operand.Following is the code for loose equality vs strict equality in JavaScript −Example Live Demo Document    body {       font-family: "Segoe UI", Tahoma, Geneva, ... Read More