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Javascript Articles
Page 266 of 534
How to convert a negative number to a positive one in JavaScript?
This tutorial will teach us to convert negative numbers to positive ones. Sometimes, programmers need to perform some operation with the unsigned value of the number, and in such a case, they need to convert the negative numbers to positive numbers. We will go through the various methods to convert a negative number to a positive number in this tutorial. Using the Math.abs() Method Multiplying the negative number with -1 Using the Bitwise Not Operator Using the Math.abs() Method The Math.abs() method is the JavaScript math library method. The Math.abs() method takes a value as a parameter and ...
Read MoreHow to convert Decimal to Binary in JavaScript?
This tutorial will teach us to convert the decimal number to a binary number string. The binary number is the string of only 0 and 1. The computer doesn’t understand the high-level programming language, so we need to instruct the computer in a low-level language, represented as the binary string. Also, binary string is used in digital electronics. Here, we have three methods to convert the decimal number to a binary string. Using the toString() Method Using the right shift Operation Using the modulo Operator Using the toString() Method The toString() method is JavaScript built-in string method that ...
Read MoreHow can I show a euro or other HTML entity in JavaScript alert windows?
This tutorial will teach us to show a euro or HTML entity in JavaScript alert Window. There are three pop-up windows in JavaScript. Alert box, Confirm box, and Prompt box. The alert box is useful to show some information to the user, such as a welcome message or user’s info. It contains the ok button, and when the user clicks on that, it closes. The confirm box is used to show the confirmation message. In many applications, you have seen that when you try to delete something, it shows the confirmation message. When you click on the ok, it returns ...
Read MoreHow can I force clients to refresh JavaScript files?
This tutorial teaches us to force clients to refresh JavaScript files. Now, the question is, why do we need to force clients to refresh the JavaScript files? Let’s understand it by example issue. Suppose we have deployed the application and lots of users are using our application. Now, to improve the performance and UI of the application, we will continuously work on our application and upgrade its version after every period. Obviously, after upgrading our application’s version, we will also push that into production. But sometimes, on the user's screen, client-side JavaScript or CSS is not upgraded, and it shows the ...
Read MoreDifference between JavaScript and AngularJS
JavaScript is a scripting language that is used to generate dynamic HTML pages with interactive effects on a webpage that runs in the web browser of the client. On the other hand, Angular JS is a framework that is built on JavaScript and adds new functionalities to HTML. Its primary purpose is to facilitate the creation of dynamic and single-page web applications (SPAs). In this article, we are going to highlight the differences between Angular JS and JavaScript. Let's start with a basic understanding of JavaScript and AngularJS. What is JavaScript? JavaScript is a simple programming language that is most ...
Read MoreHow can I store JavaScript objects in cookies?
This tutorial will teach us to store JavaScript objects into the cookies. The cookies are the information of website visitors stored in the text files. There is a particular mechanism to store the cookies of users' browsers. When new visitors visit the website, the server generates the text and sends it to the user. After that, when users allow access to the web page to retrieve the cookies, the server stores all user information in the text files. Cookies store the user’s search history or other information for a better experience. For example, Google stores the user’s search history to ...
Read MoreHow to concatenate multiple string variables in JavaScript?
In this tutorial, we will learn to concatenate the multiple string variables in JavaScript. It’s many times needed that we need to concatenate two strings in a single variable and use it. The simple meaning of concatenation is to merge two or multiple strings. Also, string concatenation is useful to insert some substring in the parent string. For example, while developing the application, as a programmer, you need to update the string by adding some other extra string to it. Users can split the string first and insert the substring using the concatenation operation. There are various methods to merge ...
Read MoreHow to convert Boolean to Number in JavaScript?
In this tutorial, we will convert Boolean to Number in JavaScript. The Boolean is the variable's data type, which is supported by JavaScript like the other programming languages. The Boolean data type contains only two values, true and false. In some cases, programmers must convert the true or false value to the number. For example, using the strict equality operator to compare the Boolean value with the number variable. Here, using different operators, we have three methods to convert the Boolean to a number. Using the Number() Function In JavaScript, the Number() function is useful to convert any variable to ...
Read MoreHow to convert Binary to Decimal in JavaScript?
In this tutorial, we will learn to convert the binary to decimal in JavaScript. The Binary number is used in digital electronics. It is a string of ‘0’ and ‘1’, representing the number with respect to base 2. Here are the different methods below to convert the binary number to decimal. Using the parseInt() Method In JavaScript, parseInt() method is useful to extract the number from the string. We can define the base for the number as a parameter in the parseInt() method. Syntax Users can follow the below syntax to use the parseInt() method to convert the binary to ...
Read MoreHow to convert a string into upper case using JavaScript?
This tutorial will teach us to convert the string into the upper case. In many governments, websites users have seen while filling forms, characters are automatically converted into the upper case to avoid any mistakes. It needs to do because JavaScript is a case-sensitive language, and if the user adds some characters in lower case and some in upper case, it can mismatch with the string stored in the database. To get accurate data from the user, it is needful to convert the string to uppercase. Here, we will learn the different methods to convert the string into the upper ...
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