Test name | Executions per second |
---|---|
typeof string is undefined | 1021369344.0 Ops/sec |
typeof undefined is undefined | 14685780.0 Ops/sec |
string is undefined | 14668529.0 Ops/sec |
undefined is undefined | 7283334.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined