String.prototype.valueOf()
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The valueOf()
method of String
values returns this string value.
Try it
Syntax
js
valueOf()
Parameters
None.
Return value
A string representing the primitive value of a given String
object.
Description
The valueOf()
method of String
returns the primitive value
of a String
object as a string data type. This value is equivalent to
String.prototype.toString()
.
This method is usually called internally by JavaScript and not explicitly in code.
Examples
Using valueOf()
js
const x = new String("Hello world");
console.log(x.valueOf()); // 'Hello world'
Specifications
Specification |
---|
ECMAScript Language Specification # sec-string.prototype.valueof |
Browser compatibility
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