※ 引述《HuangJC (吹笛牧童)》之銘言： : t = new Array(); //這樣可以建立一個陣列 : t = Array(); //這樣一樣可以建立陣列,有差嗎? "The new operator must be followed by a function invocation. It creates a new object, with no properties and then invokes the function, passing the new object as the value of the this keyword." from: JavaScript: The Definitive Guide, 5th Edition, 9.1. Constructors 上面是對 new 的解釋。 不過我沒有在這本書看過 t = Array() 的看法，在我來看的話，我會看成是一個 function，並將 return value assign 給 t。 可以用 for ... in statement 測試，只要 a 的 attributes b 都有， 而且 b 的 attributes a 也都有，就可以當作都是“一樣”的 object 了。 -- First they gossiped... They gossiped first about Proscar, and I didn't speak up because I wasn't him. Then they gossiped about SkyRS, and I didn't speak up because I wasn't him. Then they gossiped about hugo811, and I didn't speak up because I wasn't her. Then they gossiped about B9, and I didn't speak up because I was a villager; Then they gossiped about me, and by that time no one was left to speak up. --

※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 203.70.51.201