Convert True->1 and False->0 in Javascript?

Question

Besides :

true ? 1 : 0

is there any short trick which can "translate" True->1 and False->0 in Javascript ?

I've searched but couldn't find any alternative

What do you mean by "short trick" ?

answer : same as ~~6.6 is a trick forMath.floor

Answer 1

Lots of ways to do this

// implicit cast +true; // 1 +false; // 0 // bit shift by zero true >>> 0; // 1, right zerofill false >>> 0; // 0 true << 0; // 1, left false << 0; // 0 // double bitwise NOT ~~true; // 1 ~~false; // 0 // bitwise OR ZERO true | 0; // 1 false | 0; // 0 // bitwise AND ONE true & 1; // 1 false & 1; // 0 // bitwise XOR ZERO, you can negate with XOR ONE true ^ 0; // 1 false ^ 0; // 0 // even PLUS ZERO true + 0; // 1 false + 0; // 0 // and MULTIPLICATION by ONE true * 1; // 1 false * 1; // 0 

You can also use division by 1, true / 1; // 1, but I'd advise avoiding division where possible.

Furthermore, many of the non-unary operators have an assignment version so if you have a variable you want converted, you can do it very quickly.

You can see a comparison of the different methods with this jsperf.

Answer 2

Another way could be using Number()

Number(true) // = 1 Number(false) // = 0