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Symbol Prototype Methods

Symbol.prototype.toString()

Returns a string containing the description of the Symbol. Overrides the Object.prototype.toString() method.

Symbol.prototype.valueOf()

Returns the primitive value of the Symbol object. Overrides the Object.prototype.valueOf() method.


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<!DOCTYPE html><html><body><script>

var s = Symbol('h');console.log(s.toString()); // Symbol(h)console.log(s.valueOf());  // Symbol(h)//console.log(s+"");         // TypeError//console.log(s+0);          // TypeError

</script></body><html>