Test name | Executions per second |
---|---|
typeof string is undefined | 607229952.0 Ops/sec |
typeof undefined is undefined | 20353254.0 Ops/sec |
string is undefined | 20009026.0 Ops/sec |
undefined is undefined | 10495912.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined