Enum flags in JavaScript
You just have to use the bitwise operators:
var myEnum = { left: 1, right: 2, top: 4, bottom: 8}var myConfig = myEnum.left | myEnum.right;if (myConfig & myEnum.right) { // right flag is set}More info:
In javascript you should be able to combine them as:
var left_right = MyEnum.Left | MyEnum.Right;Then testing would be exactly as it is in your example of
if ( (left_right & MyEnum.Left) == MyEnum.Left) {...}
Yes, bitwise arithmetic works in Javascript. You have to be careful with it because Javascript only has the Number data type, which is implemented as a floating-point type. But, values are converted to signed 32-bit values for bitwise operations. So as long as you don't try to use more than 31 bits, you'll be fine.