1var str1 = "Hello ";
2var str2 = "world!";
3var res = str1.concat(str2);
4console.log(res);
1
2var str1 = "Hello ";
3var str2 = "world!";
4var res = str1.concat(str2);
5// does not change the existing strings, but
6// returns a new string containing the text
7// of the joined strings.
1//This method adds two or more strings and returns a new single string.
2
3let str1 = new String( "This is string one" );
4let str2 = new String( "This is string two" );
5let str3 = str1.concat(str2.toString());
6console.log("str1 + str2 : "+str3)
7
8output:
9str1 + str2 : This is string oneThis is string two
1var totn_string = '';
2
3console.log(totn_string.concat('Tech','On','The','Net'));
4
5//The following will be output to the web browser console log:
6
7TechOnTheNet
1let string1 = "Hello"
2let string2 = "World"
3
4let finalString = string1 + ", " + string2 + "!" // Hello, World!