JavaScript String concat()
Examples
Join two strings:
let text1 = "sea";
let text2 = "food";
let result = text1.concat(text2);
Try it Yourself »
Join two strings:
let text1 = "Hello";
let text2 = "world!";
let result = text1.concat(" ", text2);
Try it Yourself »
More examples below.
Definition and Usage
The concat() method joins two or more strings.
The concat() method does not change the existing strings.
The concat() method returns a new string.
Syntax
string.concat(string1, string2, ..., stringX)
Parameters
| Parameter | Description |
| string1, string2, ... stringX | Required. The strings to be joined. |
Return Value
| Type | Description |
| A string | A new string containing the combined strings. |
More Examples
Join three strings:
let text1 = "Hello";
let text2 = "world!";
let text3 = "Have a nice day!";
let result = text1.concat(" ", text2, " ", text3);
Try it Yourself »
Browser Support
concat() is an ECMAScript1 (ES1) feature.
ES1 (JavaScript 1997) is fully supported in all browsers:
| Chrome | Edge | Firefox | Safari | Opera | IE |
| Yes | Yes | Yes | Yes | Yes | Yes |
