Test name | Executions per second |
---|---|
typeof string is undefined | 226690832.0 Ops/sec |
typeof undefined is undefined | 17772236.0 Ops/sec |
string is undefined | 15601451.0 Ops/sec |
undefined is undefined | 9666743.0 Ops/sec |
typeof "not undefined" === "undefined"
typeof undefined === "undefined"
"not undefined" === undefined
undefined === undefined