Array.push，陣列保持爲空

Question

我試圖從我的redis數據庫中獲取所有hget值。但是陣列日誌保持空白。請你們看看它嗎？由於

getAllHMSets = (cb) -> 
    client.keys "log:*", (err, logKeys) -> 
    if not err and logKeys isnt null 
     logs = new Array() 
     i = 0 
     while i < logKeys.length 
     client.hgetall logKeys[i], (err, log) -> 
      if not err and log isnt null 
      logs.push log 
     i++ 

     if logs.length is logKeys.length 
     cb logs if typeof cb is "function" 

Answer 1

我覺得有兩個問題與您的代碼：

1. 你應該把它寫在更地道的CoffeeScript

2. 您的來電hgetall eitherwise您的陣列也必須使用一個回調永遠不會被填滿。

getAllHMSets = (cb) -> 
    client.keys "log:*", (err, logKeys) -> 
    if not err and logKeys isnt null 

     logs = [] 

     for value in logKeys 
     client.hgetall logKeys[i], (err, log) -> 
      if not err and log isnt null 
      logs.push log 
      if logs.length is logKeys.length 
       cb logs if typeof cb is "function"