Nat  Grady

Nat Grady

1669616580

How The Plus Equal (+=) Operator Works in JavaScript

JavaScript += operator explained

The plus equal operator += in JavaScript is a shorthand operator that allows you to add the value from the right operand to the left operand.

For example, you can add 3 to the num like this:

let num = 7;
num += 3;
console.log(num); // 10

This += operator is also known as the addition assignment operator. The use is equal to the regular addition operator.

num += 3;
// same as
num = num + 3;

Just like when using the addition operator, a type coercion is executed each time you use the operator. The priorities of the coercion are as follows:

  1. Convert to string when there is a string value
  2. Objects and arrays are converted to string
  3. When there a is number value but no string, convert to number
  4. Boolean will be converted to number types when there is no string

The string type is always number one priority, with number type coming second.

Here are several examples of addition assignment in action:

let str = "hello";
let arr = [1, 2];
let num = 9;
let bool = true;

str += 2; // string "hello2"
num += 2; // 11
arr += 3; // string "1,23"
bool += true; // number 2

Original article source at: https://sebhastian.com/

#javascript #operator 

What is GEEK

Buddha Community

How The Plus Equal (+=) Operator Works in JavaScript

Santosh J

1622036598

JavaScript compound assignment operators

JavaScript is unarguablly one of the most common things you’ll learn when you start programming for the web. Here’s a small post on JavaScript compound assignment operators and how we use them.

The compound assignment operators consist of a binary operator and the simple assignment operator.

The binary operators, work with two operands. For example a+b where + is the operator and the a, b are operands. Simple assignment operator is used to assign values to a variable(s).

It’s quite common to modify values stored in variables. To make this process a little quicker, we use compound assignment operators.

They are:

  • +=
  • -+
  • *=
  • /=

You can also check my video tutorial compound assignment operators.

Let’s consider an example. Suppose price = 5 and we want to add ten more to it.

var price = 5;
price = price + 10;

We added ten to price. Look at the repetitive price variable. We could easily use a compound += to reduce this. We do this instead.

price += 5;

Awesome. Isn’t it? What’s the value of price now? Practice and comment below. If you don’t know how to practice check these lessons.

Lets bring down the price by 5 again and display it.
We use console.log command to display what is stored in the variable. It is very help for debugging.
Debugging let’s you find errors or bugs in your code. More on this later.

price -= 5;
console.log(price);

Lets multiply price and show it.

price *=5;
console.log(price);

and finally we will divide it.

price /=5;
console.log(price);

If you have any doubts, comment below.

#javascript #javascript compound assignment operators #javascript binary operators #javascript simple assignment operator #doers javascript

Nat  Grady

Nat Grady

1669616580

How The Plus Equal (+=) Operator Works in JavaScript

JavaScript += operator explained

The plus equal operator += in JavaScript is a shorthand operator that allows you to add the value from the right operand to the left operand.

For example, you can add 3 to the num like this:

let num = 7;
num += 3;
console.log(num); // 10

This += operator is also known as the addition assignment operator. The use is equal to the regular addition operator.

num += 3;
// same as
num = num + 3;

Just like when using the addition operator, a type coercion is executed each time you use the operator. The priorities of the coercion are as follows:

  1. Convert to string when there is a string value
  2. Objects and arrays are converted to string
  3. When there a is number value but no string, convert to number
  4. Boolean will be converted to number types when there is no string

The string type is always number one priority, with number type coming second.

Here are several examples of addition assignment in action:

let str = "hello";
let arr = [1, 2];
let num = 9;
let bool = true;

str += 2; // string "hello2"
num += 2; // 11
arr += 3; // string "1,23"
bool += true; // number 2

Original article source at: https://sebhastian.com/

#javascript #operator 

Enos  Prosacco

Enos Prosacco

1590827092

The Legend of JavaScript Equality Operator

During everyday JavaScript coding, it may be hard to see how the equality operator works. Especially when the operands have different types. Time to time this creates bugs in conditionals, which are difficult to identify. It is easy to understand why 0 == 8 is false or ‘’ == false is true. But why {} == true is false is not obviously to see. If you’re interested:

to know better the equality and identity operators
to learn the formal computation algorithm
to practice a plenty of examples
then make yourself comfortable and let’s begin.

#javascript #equality #operator #programming

Rahul Jangid

1622207074

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!");
</script>

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"); */

</script>

Advantages and Disadvantages of JavaScript

#javascript #javascript code #javascript hello world #what is javascript #who invented javascript

Hire Dedicated JavaScript Developers -Hire JavaScript Developers

It is said that a digital resource a business has must be interactive in nature, so the website or the business app should be interactive. How do you make the app interactive? With the use of JavaScript.

Does your business need an interactive website or app?

Hire Dedicated JavaScript Developer from WebClues Infotech as the developer we offer is highly skilled and expert in what they do. Our developers are collaborative in nature and work with complete transparency with the customers.

The technology used to develop the overall app by the developers from WebClues Infotech is at par with the latest available technology.

Get your business app with JavaScript

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Book Free Interview: https://bit.ly/3dDShFg

#hire dedicated javascript developers #hire javascript developers #top javascript developers for hire #hire javascript developer #hire a freelancer for javascript developer #hire the best javascript developers