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Symbol.prototype.toString()

The toString() method returns a string representing the specified Symbol object.

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Syntax

toString()

Return value

A string representing the specified Symbol object.

Description

The Symbol object overrides the toString method of the Object object; it does not inherit Object.prototype.toString(). For Symbol objects, the toString method returns a string representation of the object.

No string concatenation

While you can call toString() on Symbols, you cannot use string concatenation with them:

Symbol('foo') + 'bar'        // TypeError: Can't convert symbol to string

Examples

Using toString()

Symbol('desc').toString()    // "Symbol(desc)"

// well-known symbols
Symbol.iterator.toString()   // "Symbol(Symbol.iterator)

// global symbols
Symbol.for('foo').toString() // "Symbol(foo)"

Specifications

Specification
ECMAScript Language Specification # sec-symbol.prototype.tostring

Browser compatibility

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	Deno	Node.js
`toString`	38	12	36	No	25	9	38	38	36	25	9	3.0	1.0	0.12.0