This appendix contains the operator precedence chart for JavaScript/ECMAScript (Fig. C.1) The operators are shown in decreasing order of precedence from top to bottom.
| Operator | Type | Associativity | |
|---|---|---|---|
| Fig. C.1 | JavaScript/ECMAScript operator precedence and associativity. | |||
| . | member access | left to right | |
| [ ] | array indexing | ||
| ( ) | function calls | ||
| ++ | increment | right to left | |
| -- | decrement | ||
| - | uanry minus | ||
| ~ | bitwise complement | ||
| ! | logical NOT | ||
| delete | deletes an array element or object property | ||
| new | creates a new object | ||
| typeof | returns the data type of its argument | ||
| void | prevents an expression from returning a value | ||
| * | multiplication | left to right | |
| / | division | ||
| % | modulus | ||
| + | addition | ||
| - | subtraction | ||
| + | string concatenation | ||
| << | left shift | left to right | |
| >> | right shift with sign extension | ||
| >>> | right shift with zero extension | ||
| < | less than | left to right | |
| <= | less than or equal | ||
| > | greater than | ||
| >= | greater than or equal | ||
| instanceof | type comparison | ||
| == | equality | left to right | |
| != | inequality | ||
| === | identity | ||
| !== | nonidentity | ||
| & | bitwise AND | left to right | |
| ^ | bitwise XOR | left to right | |
| | | bitwise OR | left to right | |
| && | logical AND | left to right | |
| || | logical OR | left to right | |
| ?: | conditional | right to left | |
| = | assignment | right to left | |
| += | addition assignment | ||
| -= | subtraction assignment | ||
| *= | multiplication assignment | ||
| /= | division assignment | ||
| %= | modulus assignment | ||
| &= | bitwise AND assignment | ||
| ^= | bitwise exclusive OR assignment | ||
| |= | bitwise inclusive OR assignment | ||
| <<= | bitwise left shift assignment | ||
| >> | bitwise right shift with sign extension assignment | ||
| >>>= | bitwise right shift with zero extension assignment | ||
