November 19, 1999 - Operator Precedence | WebReference

November 19, 1999 - Operator Precedence

Yehuda Shiran November 19, 1999
Operator Precedence
Tips: November 1999

Yehuda Shiran, Ph.D.
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You probably know that 2 + 6 * 9 is 56 and not 72, because multiplication precedes addition. This is exactly the meaning of operator precedence. It is not necessary to remember the precedence rules because you can always use parentheses () to force evaluation in the desired order. The table below lists the operator precedence for those cases that you cannot use parentheses. Note that operators at the same precedence level are evaluated from left to right.

LevelOperators
1() [] void typeof
2! ~ - ++ --
3* / %
4+ -
5> >>>
6 >=
7== !=
8&
9^
10|
11&&
12||
13?:
14= += -= *= /= %= >= >>>= &= ^= |=
15,