Test name | Executions per second |
---|---|
undefined | 8393813.0 Ops/sec |
void 0 | 20734222.0 Ops/sec |
constant containing undefined | 12156584.0 Ops/sec |
var a = 1, u = void 0;
if(a===undefined)console.log(a);
if(a===void 0)console.log(a);
if(a===u)console.log(a);