Switch vs. If + else
JavaScript performance comparison
Revision 2 of this test case created
Preparation code
<script>
Benchmark.prototype.setup = function() {
var num = '100';
};
Benchmark.prototype.teardown = function() {
num = null;
};
</script>
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Testing in unknown unknown
| Test |
Ops/sec |
Switch |
switch (num) {
case '10':
//console.log('You chose number:' + num);
false;
break;
case '20':
//console.log('You chose number:' + num);
false;
break;
case '30':
//console.log('You chose number:' + num);
false;
break;
case '40':
//console.log('You chose number:' + num);
false;
break;
case '50':
//console.log('You chose number:' + num);
false;
break;
case '60':
//console.log('You chose number:' + num);
false;
break;
case '70':
//console.log('You chose number:' + num);
false;
break;
case '80':
//console.log('You chose number:' + num);
false;
break;
case '90':
//console.log('You chose number:' + num);
false;
break;
case '100':
true;
break;
};
|
pending… |
If/Else |
if (num === '10') {
//console.log('You chose number:' + num);
false;
} else if (num === '20') {
//console.log('You chose number:' + num);
false;
} else if (num === '30') {
//console.log('You chose number:' + num);
false;
} else if (num === '40') {
//console.log('You chose number:' + num);
false;
} else if (num === '50') {
//console.log('You chose number:' + num);
false;
} else if (num === '60') {
//console.log('You chose number:' + num);
false;
} else if (num === '70') {
//console.log('You chose number:' + num);
false;
} else if (num === '80') {
//console.log('You chose number:' + num);
false;
} else if (num === '90') {
//console.log('You chose number:' + num);
false;
} else if (num === '100') {
true;
};
|
pending… |
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