odd & even methods improvements

I notice here use % to test if the number is even or odd.

I suggest we use bitwise operator here to get the best performance.

So, we can rewrite them as:

even: function(elem, i){

return !( i & 1 );

odd: function(elem, i){

return ( i & 1 ) === 1;//!!(i & 1)

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Change History (1)

resolution:	→ wontfix
status:	new → closed

There is no effective performance difference between these two operations. jsperf test

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