Test name | Executions per second |
---|---|
typeof string is undefined | 209349168.0 Ops/sec |
typeof undefined is undefined | 17648278.0 Ops/sec |
string is undefined | 18379352.0 Ops/sec |
undefined is undefined | 9242381.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined