Concatenating two Strings with +=

We can easily append variables to a string using the plus equals (+=) operator.

let adjective = "really fun!!";
let str = "Learning basic JavaScript is ";
console.log(str += adjective);

The console will show the output:

Learning basic JavaScript is really fun!!

Comments

[Jakub T. Jankiewicz]

Actually it's not appending, because strings in JavaScript are immutable. You're creating new string and assign it the to the same variable.

[Swarnali Roy]

If you search the google writing "append string in JavaScript" it will show you the concat method of joining two strings together. And append also means the same, concatenation.
Here I have created two variables that holds two different strings and inside the console.log() I've concatenate those two. So that's why I said appending variables.

[DEV-GOPAL0110]

such a grateful things to learn as beginner in javaScript !!!thank you mam for simplified code !!