What is faster: many ifs, or else if?

Question

I\'m iterating through an array and sorting it by values into days of the week.

In order to do it I\'m using many if statements. Does it make any differ

Answer 1

In general, "else if" style can be faster because in the series of ifs, every condition is checked one after the other; in an "else if" chain, once one condition is matched, the rest are bypassed.

The fastest would be a table dispatch, which is what a switch statement gets optimized into when there are enough cases in it (if there are few cases in a switch, it gets translated into a series of if-else checks in the resulting machine code).