javascript: concatenating string function concat()

String.prototype.concat()

concat() method connects and merges one or more strings with the original string to form a new string and return it, without affecting the original string.

Syntax

str.concat(string2, string3[, ..., stringN])

Parameters

string2...stringN

Multiple strings connected to the original string

Description

concat method combines one or more strings with the original string to form a new string and returns it. The concat method does not affect the original string.

Example

The following example demonstrates how to merge multiple strings with the original string into a new string.

var hello = "Hello, ";
console.log(hello.concat("Kevin", " have a nice day.")); /* Hello, Kevin have a nice day. */

Performance

It is strongly recommended to use assignment operators (+, +=) instead of concat method.

Browser compatibility

Full platform support.