Test name | Executions per second |
---|---|
typeof string is undefined | 170263616.0 Ops/sec |
typeof undefined is undefined | 13353384.0 Ops/sec |
string is undefined | 13501195.0 Ops/sec |
undefined is undefined | 6977637.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined