Run results for: condition if-else switch map

Test name	Executions per second
switch	14790937.0 Ops/sec
if-else	51101220.0 Ops/sec
map	591332.7 Ops/sec

switch

function test(a) {
	switch(a) {
      case 0:
        return 0;
        case 1:
        return 0;
        case 2:
        return 0;
        case 3:
        return 0;
        case 4:
        return 0;
        case 5:
        return 0;
        case 6:
        return 0;
        case 7:
        return 0;
        case 8:
        return 0;
        case 9:
        return 0;
        case 10:
        return 0;
        case 11:
        return 0;
        case 12:
        return 0;
      default:
        return 0;
    }
}
test(12)

if-else

function test(a) {
	if (a === 0) {
    	return 0;
    } else if (a === 1) {
    	return 0;
    } else if (a === 2) {
    	return 0;
    } else if (a === 3) {
    	return 0;
    } else if (a === 4) {
    	return 0;
    } else if (a === 5) {
    	return 0;
    } else if (a === 6) {
    	return 0;
    } else if (a === 7) {
    	return 0;
    } else if (a === 8) {
    	return 0;
    } else if (a === 9) {
    	return 0;
    } else if (a === 10) {
    	return 0;
    } else if (a === 11) {
    	return 0;
    } else if (a === 12) {
    	return 0;
    } else {
      return 0;
    }
}
test(12)

map

function test(a) {
  const map = new Map([
  	[0,0],
    [1,0],
    [2,0],
    [3,0],
    [4,0],
    [5,0],
    [6,0],
    [7,0],
    [8,0],
    [9,0],
    [10,0],
    [11,0],
    [12,0],
  ])
	return map.get(a) || 0
}
test(12)