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作者 s25g5d4 在 PTT [ Ajax ] 看板的留言(推文), 共1015則
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1F推: debugging 考量,噴 error 的時候沒給 function name06/24 22:27
2F→: 就會寫 anonymous function06/24 22:28
3F推: 改用 querySelectorAll 就不會有這個行為了05/01 22:56
10F推: 這問題要從 variable hoisting 開始,在 compile phase o04/13 12:50
11F→: bj 會先被初始化成 undefined,然後因為你在 assignment04/13 12:50
12F→: expression 計算完成之前就呼叫 .bind(),又因為 javascr04/13 12:50
13F→: ipt 是 call by sharing 所以此時傳進 bind 的會是 undef04/13 12:50
14F→: ined,即使後來 assignment 完成之後也不會影響傳進 .bin04/13 12:50
15F→: d() 裡的 argument,所以實際上你等於呼叫了 .bind(undef04/13 12:50
16F→: ined)04/13 12:50
1F推: 所有的判斷是最終都會回歸布林真假值,found 本來就是03/11 02:00
2F→: boolean 所以可以判斷啊03/11 02:00
3F→: 判斷式*03/11 02:00
1F推: ES6 的 class method 是 non-enumerable 的,不能用 for03/17 21:55
2F→: in 或 Object.keys() 去取得 method name03/17 21:55
3F推: https://jsfiddle.net/5xw6gas3/ 硬幹的話是這樣03/17 22:07
2F推: 恭喜你將撞上 JavaScript 最可怕也最迷人的非同步執行03/09 02:32
4F推: 大部分都用 const, 只有噴錯誤的時候才改 let01/03 17:17
5F→: 一個好的 linter 可以自動幫你檢查01/03 17:17
1F推: leetcode 的哪題?11/14 00:49
10F推: 這題要注意 [()] 這種巢狀括號11/14 20:45
9F推: iOS 10 以上可以加 muted 就會自動播放了10/13 22:40
5F推: 我都寫 TypeScript, 它會自動幫我轉 XD09/08 17:39