javascript instance method
String.prototype.valueOf()
The valueOf() method of String values returns this string value.
Interactive exampleOpen the canonical MDN source to run this embedded demo.
const stringObj = new String("foo");
console.log(stringObj);
// Expected output: String { "foo" }
console.log(stringObj.valueOf());
// Expected output: "foo"
Syntax
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
toString().
This method is usually called internally by JavaScript and not explicitly in code.
Examples
Using valueOf()
const x = new String("Hello world");
console.log(x.valueOf()); // 'Hello world'
Specifications
SpecificationsStandards references are available on the canonical MDN page.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.