Test name | Executions per second |
---|---|
typeof string is undefined | 26955936.0 Ops/sec |
typeof undefined is undefined | 1108489.4 Ops/sec |
string is undefined | 698358.0 Ops/sec |
undefined is undefined | 357209.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined