Title is most of the question, what allows this to be valid code? Is there any benefit or trick that would allow me to utilize this?
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The unary plus operator has higher precedence than the addition operator, just split your expression into multiple grouped expressions and it will seem pretty obvious:
var m = 6 + ( +( +( +( +( +( +( +( 6 ))))))));
//6 + 6
Christian C. Salvadó
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The extra pluses are being treated as positive indicators. As in +1.
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What was the rational on adding positive indicators?? Anyone have any insight to this? – Dested Mar 27 '10 at 07:41
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3so it's 6 + really really very positive 6? – Mike Two Mar 27 '10 at 07:44
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@Dested: Rationale? Rationale? The inmates run that asylum, my friend. If anything, it would be symmetry. – Mar 27 '10 at 07:46
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2@Mike Two: Yes. As positive as you can get without adding another plus sign. – Mar 27 '10 at 07:46
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can you do the same thing with minus ( 6 - - - - - - 6) ? – Thilo Mar 27 '10 at 07:47
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@Thilo: Apparently... but with a less stable effect, obviously. – Mar 27 '10 at 07:55
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1@Dested: Some ideas on rationale here: http://stackoverflow.com/questions/727516/what-does-the-unary-plus-operator-do – AakashM Mar 27 '10 at 08:51