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JavaScript concat() Method
Example
Join two strings:
var str1 = "Hello ";
var str2 = "world!";
var n = str1.concat(str2);
var str2 = "world!";
var n = str1.concat(str2);
The result of n will be:
Hello world!
Try it yourself »
Definition and Usage
The concat() method is used to join two or more strings.
This method does not change the existing strings, but returns a new string containing the text of the joined strings.
Browser Support
The concat() method is supported in all major browsers.
Syntax
string.concat(string1, string2, ..., stringX)
Parameter Values
| Parameter | Description |
|---|---|
| string1, string2, ..., stringX | Required. The strings to be joined |
Return Value
| Type | Description |
|---|---|
| String | A new string, containg the text of the combined strings |
Technical Details
| JavaScript Version: | 1.2 |
|---|
More Examples
Example 2
Join three strings:
var str1="Hello ";
var str2="world!";
var str3=" Have a nice day!";
var n = str1.concat(str2,str3);
var str2="world!";
var str3=" Have a nice day!";
var n = str1.concat(str2,str3);
The result of n will be:
Hello world! Have a nice day!
Try it yourself »
JavaScript String Object
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