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How-to articles, tricks, and solutions about VARIABLE

How to Include a JavaScript File in Another JavaScript File

Read the tutorial and find out different approaches to including a JavaScript file in another JavaScript file. Also, find a brief representation of methods.

javascript file variable function

How to Measure Time Taken by a Function to Execute

Read this JavaScript tutorial and learn several fast and useful methods that are used to calculate the time taken by a function to execute in milliseconds.

javascript variable function date and time

How to Merge Two Arrays in JavaScript and De-duplicate Items

Read this tutorial and find useful information about the simplest methods that are used for merging two arrays and removing duplicate items in JavaScript.

javascript variable array methods

How to Pass Variables by Reference in PHP

Working with variables is an essential part of a developer’s life. In this snippet, we will demonstrate to you how to pass variables by reference with PHP.

php variable string function reference

How to Randomize (shuffle) a JavaScript Array

In JavaScript, there no any built-in method of shuffling a JavaScript array. Read this tutorial and learn what is the popular method of randomizing arrays.

javascript variable javascript array function

How to Start a PHP Function with an Ampersand

In PHP, an ampersand is put before the function name for returning a reference to the variable instead of returning the value. Learn how to do that, here.

php variable reference ampersand

How to Subtract Days from Date in JavaScript

Read this tutorial and learn useful information about the instance methods of the Date object to help you subtract days from date in JavaScript easily.

javascript variable javascript object date and time

How to Unset a JavaScript Variable

Read this JavaScript tutorial to know why you cannot delete the property that is created with var. Also, know in which cases you shouldn’t use the operator.

javascript variable javascript object operator

How to Use the @ Sign in PHP

The @ sign is one of the common used ones in programming. Let’s discover how it can be used in PHP together. Read on the snippet and check the examples.

php variable error

How to Use the Double Not(!!) Operator in PHP

The double Not(!!) or the NOT NOT is one of the commonly used operators in PHP. Here, we will show you what it is and how to use it in your practice.

php variable data types double not boolean