ES Discuss - Message History

Brendan Eich (2014-08-26T17:01:04.000Z)

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Jeff Walden wrote:
> It's not the most correct way to do it.  |a + ""| performs ToPrimitive(a, hint = None), whereas ToString(a) performed ToPrimitive(a, hint = String).  The former consults valueOf, then toString, the latter the reverse.

Argh, I had forgotten about the no-hint case there. It seems wrong 
still, but I forget the details from ES1 era.

Domenic's question of why you want an explicit ToString in the language 
remains. If there's a strong reason for it, Reflect.toString might be 
the answer.

/be

domenic at domenicdenicola.com (2014-09-08T23:27:05.975Z)

Jeff Walden wrote:
> It's not the most correct way to do it.  `a + ""` performs ToPrimitive(a, hint = None), whereas ToString(a) performed ToPrimitive(a, hint = String).  The former consults `valueOf`, then `toString`, the latter the reverse.

Argh, I had forgotten about the no-hint case there. It seems wrong 
still, but I forget the details from ES1 era.

Domenic's question of why you want an explicit ToString in the language 
remains. If there's a strong reason for it, `Reflect.toString` might be 
the answer.

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