Test name | Executions per second |
---|---|
typeof string is undefined | 957773440.0 Ops/sec |
typeof undefined is undefined | 8102878.5 Ops/sec |
string is undefined | 8007153.0 Ops/sec |
undefined is undefined | 3941918.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined