Test name | Executions per second |
---|---|
typeof string is undefined | 1023484736.0 Ops/sec |
typeof undefined is undefined | 16608793.0 Ops/sec |
string is undefined | 16805324.0 Ops/sec |
undefined is undefined | 8411497.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined