Javascript: concatenation string function concat ()

Javascript: concatenation String function concat () String. prototype. concat ()

The concat () method concatenates 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

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

Example

The following example demonstrates how to combine 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

We strongly recommend that you use the value assignment operator (+, + =) instead of the concat method.

Browser compatibility

Full platform support.