JavaScript concat () method
Examples
Concatenate two strings:
var str1 = "Hello ";
var str2 = "world!";
var n = str1.concat(str2);
var str2 = "world!";
var n = str1.concat(str2);
n output:
Hello world!
try it"
Definition and Usage
concat () method is used to connect two or more strings.
This method does not change the original string, but returns to connect two or more of the new string.
Browser Support
All major browsers support concat () method
grammar
string.concat( string1 , string2 , ..., stringX )
Parameter Value
| 参数 | 描述 |
|---|---|
| string1 , string2 , ..., stringX | 必需。将被连接为一个字符串的一个或多个字符串对象。 |
return value
| 类型 | 描述 |
|---|---|
| String | 两个或多个字符串连接后生成的新字符串。 |
technical details
| JavaScript version: | 1.2 |
|---|
More examples
Example 2
3 connection string:
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);
n output:
Hello world! Have a nice day!
try it"