Returns a string value containing the concatenation of two or more supplied strings.

string1.concat([string2[, string3[, . . . [, stringN]]]])

Arguments

string1

Required. The String object or literal to which all other specified strings are concatenated.

string2,. . ., stringN

Optional. String objects or literals to concatenate to the end of string1.

Remarks

The result of the concat method is equivalent to: result = string1 + string2 + string3 + … + stringN. A change of value in either a source or result string does not affect the value in the other string. If any of the arguments are not strings, they are first converted to strings before being concatenated to string1.

Example

The following example illustrates the use of the concat method when used with a string:

function concatDemo(){
   var str1 = "ABCDEFGHIJKLM"
   var str2 = "NOPQRSTUVWXYZ";
   var s = str1.concat(str2);
   // Return concatenated string.
   return(s);
}

Requirements

Version 3

See Also

Addition Operator (+) | Array Object | concat Method (Array) | String Object Methods

Applies To: String Object