Test name | Executions per second |
---|---|
typeof string is undefined | 1776524928.0 Ops/sec |
typeof undefined is undefined | 17467188.0 Ops/sec |
string is undefined | 17979866.0 Ops/sec |
undefined is undefined | 9037476.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined