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String.prototype.valueOf()

The valueOf() method of String values returns this string value.

valueOf()

None.

A string representing the primitive value of a given String object.

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.

const x = new String("Hello world");
console.log(x.valueOf()); // 'Hello world'

Specification
ECMAScript Language Specification # sec-string.prototype.valueof

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	Deno	Node.js
`valueOf`	1	12	1	3	1	18	4	10.1	1	1.0	4.4	1.0	0.10.0