Test name | Executions per second |
---|---|
typeof string is undefined | 398535776.0 Ops/sec |
typeof undefined is undefined | 8137124.0 Ops/sec |
string is undefined | 8028890.0 Ops/sec |
undefined is undefined | 4079569.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined