js日期對象產生奇怪的結果

Question

我的日期格式爲2011-04-01。當我運行下面的代碼時，會得到以下結果。

var dateParts = '2011-04-01'.split('-'); 
dateParts[0] = parseInt(dateParts[0]); 
dateParts[1] = parseInt(dateParts[1]); 
dateParts[2] = parseInt(dateParts[2]); 
console.log(dateParts); 
for (i = 0; i <= 13; i++) { 
    var thisDate = new Date(dateParts[0], dateParts[1], dateParts[2] + i); 
    console.log(thisDate); 
} 

結果：

[2011, 4, 1] 
Date {Sun May 01 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Mon May 02 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Tue May 03 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Wed May 04 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Thu May 05 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Fri May 06 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Sat May 07 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Sun May 08 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Mon May 09 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Tue May 10 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Wed May 11 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Thu May 12 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Fri May 13 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 
Date {Sat May 14 2011 00:00:00 GMT-0400 (Eastern Daylight Time)} 

我分裂的日期，我給Date對象的數量是在四月，爲什麼會發生在五月的日期？我對JS有點新，所以可能會有一些明顯的缺失。任何改進的幫助或建議，將不勝感激。

Answer 1

某些JavaScript日期部分數組基於零：天：0 =>週日，月：0 =>一月

參考：https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date

修改代碼：http://jsfiddle.net/j4kBE/