Category: JavaScript

How to append an array to another in JavaScript ?

In JavaScript , you may want to append one array to another array(s) to combine their elements resulting in to a single array. How to append an array to another in JavaScript ? You can use the concat method of JavaScript to achieve the same. Below is a sample code snippet demonstrating the usage of the concat method of array in JavaScript to combine multiple…

How to pass a function as parameter in JavaScript ?

There are times when you might want to pass a function as argument to another function in JavaScript. The function keyword can work in multiple ways. It can act as a operator and a statement as well. Additionally , you can create an expression as well. How to pass a function as parameter in JavaScript ? We can pass a function as a parameter to…

How to Check if all elements in array are alphabets in JavaScript ?

JavaScript provides the every() method defined in the Array object which lets the developers to check and validate the contents of the array in JavaScript. How to Check if all elements in array are alphabets in JavaScript ? Below is a sample code snippet demonstrating the usage of the every() method to find out if all the elements in the array are alphabets. Note that…

How to remove or replace array element in JavaScript ?

To remove or replace an element in an array in JavaScript , you can use the splice method as shown below. How to remove or replace array element in JavaScript ? To remove the array element , you can use the splice method and specify the index of the array to remove the array element. The second parameter determines the number of elements to remove….

Searching in an Array in JavaScript

If you want to search an array for a value in JavaScript and retrieve the index of the found array element , you can use the Array’s indexOf method. How to search for an element in an array in JavaScript ? When using the indexOf method , if the value is found, it returns the index representing the array element. If the value is not…

Top 10 JavaScript Drawing Libraries

Are you a Web developer and looking for the drawing libraries in JavaScript ?. In this blog post , we list out some of the popular JavaScript drawing libraries. Top 10 JavaScript Drawing Libraries D3.js Paper.js Raphael Processing.js Fabric.js p5.js Maker.js Snap.svg pixi.js Paths.js Are there any other interesting JavaScript drawing libraries that you use ?. Feel free to share them in the comments section.

Verify if the variable is a non-empty string in JavaScript

If you want to test if a variable that is defined is a non-empty string in JavaScript , you can use the typeof keyword to find if the type is a sring as well as check for the length of the string as shown below. How to verify if the variable is a non-empty string in JavaScript ? This will cause the else part to…

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