JavaScript

In JavaScript, Objects are variables that contain many values. The values are written as name: value pairs. A JavaScript string stores a series of characters like “Homer Simpson”. In this article, we will see the conversion of Object to String. Object to String in JavaScript To convert an Object to String in JavaScript, use the JSON.stringify() function. … Read more

The Boolean object is an object wrapper for a boolean value. Sometimes in our project, we may have a boolean value in string format (“true” or “false”), and we want its boolean equivalent (such as true or false).  JavaScript String to Boolean To convert String to Boolean in JavaScript, use the !! operator or Boolean() … Read more

Checking for null values is a simple task that every developer has to perform at some point or another. The typeof operator helps in checking null because the keyword returns “object” for null, so that means a little bit more effort is required. The value null is falsy, but empty objects are truthy, so typeof … Read more

You can create a JavaScript object with an object literal({ }). The values in objects are written as name: value pairs (name and value separated by a colon). JavaScript check if object is empty To check if the Object is empty in JavaScript, use the Object.keys() method with an additional constructor. The Object.keys() is a … Read more

In JavaScript, three properties, undefined, null, and nan, are confusing at first, but when you study deep, you will know each is different in its own grounds. What is undefined in JavaScript The undefined property in JavaScript suggests that a variable has not been assigned a value or not declared at all. The global undefined property … Read more

JavaScript arrays are used to save multiple values in a single variable. The typeof operator in JavaScript returns “object” for arrays. The arrays are special kinds of objects. JavaScript Array to String To convert array to string in JavaScript, use the toString() method. The array.toString() is a built-in JavaScript method that returns a string with … Read more

JavaScript arrays are one of the most used data types. They are dynamic, easy to use, and offer a whole bunch of built-in methods we can take advantage of. Adding an array to an existing array is not a complex operation. Let’s see how it is done. Javascript add array to array To add an … Read more

An object in JavaScript is a collection of related data and/or functionality that normally consists of numerous variables and functions which are called properties and methods when they are inside objects. You can add or remove properties from the Object or copy the object. Javascript Add to Object To add properties or insert key-value pair … Read more

A Date is a built-in object in JavaScript. To create a new Date object, use the new Date(), a set of methods become available to operate on it. Date objects contain a Number that represents milliseconds since 1 January 1970 UTC. JavaScript does not have any built-in function that can add days to the date. … Read more

In web development, sometimes, you need to add a class to an element dynamically. Using JavaScript, you can add a CSS class to the element using many ways but we will see the modern approach which is very easy. Javascript add class To add a class to a given element in JavaScript, use the element.classList.add() … Read more