Test name | Executions per second |
---|---|
typeof string is undefined | 27985352.0 Ops/sec |
typeof undefined is undefined | 1840930.5 Ops/sec |
string is undefined | 1882830.9 Ops/sec |
undefined is undefined | 992269.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined