What is difference between (1) and 1.
1.toString() //Will throw error
1.toFixed(1) //Will throw error
(1).toString() // output "1"
(1).toFixed(1) // output 1.0
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Jagajit Prusty
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The trailing period on 1. is part of the number -- the compiler reads it as a decimal point, not as the dot operator. This makes an identifier immediately following the number unexpected.
Consider, for comparison: 1.0toString()
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1I don’t think anyone would expect `1.0toString()` to work, however `1.0.toString()` works fine. – Sebastian Simon Jan 28 '17 at 03:03
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I think @duskwuff meant to say `1.0.toString()` ? – Anthony C Jan 28 '17 at 03:05
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1@AnthonyC I mean what I said, and I said what I meant. :) – Jan 28 '17 at 03:06
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@duskwuff was supplying `1.0toString()` as something that is obviously even to human eyes an error - and that is parsed exactly the same as `1.toString()` by the Javascript compiler. – Mark Reed Jan 28 '17 at 03:09
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@duskwuff I understood `1.` explanation but what does (1) mean to compiler? – Jagajit Prusty Jan 28 '17 at 03:11
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@JagajitPrusty what do you suppose that `(1) + 1` means? Do you understand what `( )` means in ordinary algebra? – Pointy Jan 28 '17 at 03:15