The toString()
method returns a string representing the specified Symbol
object.
Symbol().toString()
A string representing the specified Symbol
object.
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.
While you can call toString()
on Symbols, you cannot use string concatenation with them:
Symbol('foo') + 'bar' // TypeError: Can't convert symbol to string
Symbol('desc').toString() // "Symbol(desc)" // well-known symbols Symbol.iterator.toString() // "Symbol(Symbol.iterator) // global symbols Symbol.for('foo').toString() // "Symbol(foo)"
Specification |
---|
ECMAScript (ECMA-262) The definition of 'Symbol.prototype.toString' in that specification. |
Desktop | ||||||
---|---|---|---|---|---|---|
toString |
38 | 12 | 36 | No | 25 | 9 |
Mobile | ||||||
---|---|---|---|---|---|---|
toString |
38 | 38 | 36 | 25 | 9 | 3.0 |
Server | |
---|---|
toString |
0.12 |
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https://wiki.developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toString