JavaScript concat() Method is used to join two or more strings.
Let's create two strings and we can join them using concatenate method and then display the result.
var string1= 'HowToCodeSchool';
var string2 = '.com';
var string3 = string1.concat('',string2);
document.getElementById('output').innerHTML = 'Output: ' + string3;
Output: HowToCodeSchool.com
Video Tutorial
Watch video tutorial on JavaScript concat() Method.