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Can be accessed at:
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Check performance of === vs == in varying situations.
<script>
var n = null,
e = '',
isU = function(v) {
return typeof v === 'undefined';
},
isN = function(v) {
return v === null;
},
isUN = function(v) {
return typeof v !== 'undefined' && v !== null;
},
isUNfn = function(v) {
return !isU(v) && !isN(v);
},
isUNb = function(v) {
return !!!v;
};
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
n eqeqeq null |
| ready |
n eqeq null |
| ready |
isU |
| ready |
isN |
| ready |
isUN |
| ready |
isUNfn |
| ready |
isUNb |
| ready |
n |
| ready |
not n |
| ready |
not not n |
| ready |
not not not n |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.