The JavaScript concat method is used to join two or more strings.

Syntax:

string.concat(string1, string2, …, stri ng N)

Example of JavaScript concat() method:

var str1 = “This is “;
var str2 = “JavaScript concat() method”;
var n = str1.concat(str2);
alert(n);  //  OUTPUT :  This is JavaScript concat() method

Live Demo:JavaScript concat() Method