Javascript Reference - JavaScript String concat() Method
concat() concatenates one or more strings
to another and returns the concatenated string.
This method does not change the existing strings.
Browser Support
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concat() |
Yes | Yes | Yes | Yes | Yes |
Syntax
stringObject.concat(string1, string2, ..., stringX);
Parameter Values
| Parameter | Description |
|---|---|
| string1, string2, ..., stringX | Required. The strings to join |
Return Value
A new String containing the combined strings.
Example
var stringValue = "hello ";
var result = stringValue.concat("world");
console.log(result); //"hello world"
console.log(stringValue); //"hello"
The code above generates the following result.
Example 2
The concat() method accepts any number of arguments:
var stringValue = "hello ";
var result = stringValue.concat("world", "!");
console.log(result); //"hello world!"
console.log(stringValue); //"hello"
The original string is not changed.
The code above generates the following result.
