Test name | Executions per second |
---|---|
typeof string is undefined | 780230784.0 Ops/sec |
typeof undefined is undefined | 5357074.5 Ops/sec |
string is undefined | 5561076.5 Ops/sec |
undefined is undefined | 2661674.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined