摘要： Using ArraysArrays in JScript are sparse. That is, if you have an array with three elements that are numbered 0, 1, and 2, you can create element 50 without worrying about elements 3 through 49. If th... 阅读全文

摘要： Advanced Object Creation A constructor is a function you call to instantiate and initialize a particular type of object. You invoke a constructor with the new keyword. Here are a few examples of using... 阅读全文