Photo by Mohammad Rahmani on Unsplash
console
函式資料
| 變數 |
說明 |
| console.time() |
紀錄起始時間 |
| console.timeEnd() |
紀錄結束時間 |
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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