Top essential Javascript Number Methods

You might not know these super handy Number methods yet.

The properties and methods on the Number type are not something that I work with every day, and it is one of the more looked up topics for me. It’s usually because of something that didn’t add up, like in the case of comparing floating-point numbers- which always surprises me, and I lose a few moments researching Number topics.

But they can be super helpful in providing an easy way to convert between bases (toString), adding currency type or adhering to a certain number format based on the locale someone might be visiting (toLocaleString)

Maximum and minimum values

Numbers in machines have a maximum and minimum size that that particular machine (in this case, the Javascript VM) can operate with. In Javascript, those min/max values are stored as constants on the Number type. It’s not obvious right away how and why to use them.

#beginner #programming #javascript #tutorial

Top essential Javascript Number Methods
Suparnar Taina

Suparnar Taina


Top 12 Most Common JavaScript Number Methods

There are many JavaScript Number methods that are often used to manipulate number values. These number formats support integers, floating-point numbers, such as decimal, hexadecimal, notations.

Here are a few methods that can make manipulating and modifying numeric values much easier.

JavaScript Number Format

1\. Number()

The **Number()** method converts a string into a number.

// Example 1
let x = '10'
let num = Number(x)

console.log(num)                 // Output: 10
console.log(num * 9)             // Output: 90
// Example 2
let x = true
let num = Number(x)
console.log(num)                 // Output: 1
console.log(num + 9)             // Output: 10
//Example 3
let x = false
let num = Number(x)
console.log(num)                 // Output: 0
console.log(num + 9)             // Output: 9

In the example above, Number(value) method is used to convert string x to an integer and perform operations on the number value. Setting x totrue returns 1 and false returns 0.

#javascript #methods #technical-interview #numbers

Top 12 Most Common JavaScript Number Methods

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Hire Dedicated JavaScript Developers -Hire JavaScript Developers

Niraj Kafle


The essential JavaScript concepts that you should understand

As a JavaScript developer of any level, you need to understand its foundational concepts and some of the new ideas that help us developing code. In this article, we are going to review 16 basic concepts. So without further ado, let’s get to it.

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The essential JavaScript concepts that you should understand

Rahul Jangid


What is JavaScript - Stackfindover - Blog

Who invented JavaScript, how it works, as we have given information about Programming language in our previous article ( What is PHP ), but today we will talk about what is JavaScript, why JavaScript is used The Answers to all such questions and much other information about JavaScript, you are going to get here today. Hope this information will work for you.

Who invented JavaScript?

JavaScript language was invented by Brendan Eich in 1995. JavaScript is inspired by Java Programming Language. The first name of JavaScript was Mocha which was named by Marc Andreessen, Marc Andreessen is the founder of Netscape and in the same year Mocha was renamed LiveScript, and later in December 1995, it was renamed JavaScript which is still in trend.

What is JavaScript?

JavaScript is a client-side scripting language used with HTML (Hypertext Markup Language). JavaScript is an Interpreted / Oriented language called JS in programming language JavaScript code can be run on any normal web browser. To run the code of JavaScript, we have to enable JavaScript of Web Browser. But some web browsers already have JavaScript enabled.

Today almost all websites are using it as web technology, mind is that there is maximum scope in JavaScript in the coming time, so if you want to become a programmer, then you can be very beneficial to learn JavaScript.

JavaScript Hello World Program

In JavaScript, ‘document.write‘ is used to represent a string on a browser.

<script type="text/javascript">
	document.write("Hello World!");

How to comment JavaScript code?

  • For single line comment in JavaScript we have to use // (double slashes)
  • For multiple line comments we have to use / * – – * /
<script type="text/javascript">

//single line comment

/* document.write("Hello"); */


Advantages and Disadvantages of JavaScript

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What is JavaScript - Stackfindover - Blog
Julie  Donnelly

Julie Donnelly


JavaScript Promise: Methods Comparison


Promises in JavaScript are used to handle asynchronous operations by keeping track of whether a certain event has happened. If that certain event has taken place, it determines what happens next. Promises return a value which is either a resolved value or a reason why it’s rejected. They can handle multiple asynchronous operations easily and they provide better error handling than callbacks and events.

Callback: A callback is a function that is passed into another function as an argument to be executed later.

Events: Events provide a dynamic interface to a WebPage and are connected to elements in the Document Object Model(DOM), for example: onclick(), onmouseover() etc.

A Promise has four states

Pending: Before the event has happened, the promise is in the pending state.

Settled: Once the event has happened it is then in the settled state.

Fulfilled: Action related to the promise has succeeded.

Rejected: Action related to the promise has failed.

#javascript #javascript-development #javascript-tutorial #promises #javascript-tips

JavaScript Promise: Methods Comparison