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concat method

The concat method combines given strings. The number of strings to concatenate is not limited. In fact, the action of this method is similar to the operation '+' for string concatenation.

Syntax

string.concat(another string, and another string, and another...);

Example

Let's use the concat method to merge three strings into one:

let str1 = 'a'; let str2 = 'b'; let str3 = 'c'; let res = str1.concat(str2, str3); console.log(res);

The code execution result:

'abc'

Example

You can apply the method to an empty string. In this case, all the strings to be concatenated will be passed as the method parameters:

let str1 = 'a'; let str2 = 'b'; let str3 = 'c'; let res = ''.concat(str1, str2, str3); console.log(res);

The code execution result:

'abc'

See also

  • the concat method
    that concatenates arrays into one
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