Photo by Mohammad Rahmani on Unsplash
console
函式资料
| 变数 |
说明 |
| console.time() |
纪录起始时间 |
| console.timeEnd() |
纪录结束时间 |
let result;
console.time('Object');
result = obj.hasOwnProperty('999999');
console.timeEnd('Object');
// Object: 0.250ms
console.time('Map');
result = map.has(999999);
console.timeEnd('Map');
// Map: 0.095ms (2.6 times faster)
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