Test name | Executions per second |
---|---|
typeof string is undefined | 788140096.0 Ops/sec |
typeof undefined is undefined | 7685064.0 Ops/sec |
string is undefined | 7770404.0 Ops/sec |
undefined is undefined | 3868816.2 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined