如果两者都调用构造函数“Array”并生成一个对象，有什么不同？
我知道如果我们创建一些没有 new 的对象，我们会丢失 this:
function Animal(name) {this.name = name}
var duck = Animal('duck'); // undefined
但是 new Array(n) 和 Array(n) 是如何工作的呢？
最佳答案
没有区别。检查这个article :
You never need to use new Object() in JavaScript. Use the object literal {} instead. Similarly, don’t use new Array(), use the array literal [] instead. Arrays in JavaScript work nothing like the arrays in Java, and use of the Java-like syntax will confuse you.
Do not use new Number, new String, or new Boolean. These forms produce unnecessary object wrappers. Just use simple literals instead.
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So the rule is simple: The only time we should use the new operator is to invoke a pseudoclassical Constructor function. When calling a Constructor function, the use of new is mandatory.
关于javascript - `new Array(n)` 和 `Array(n)` 有什么区别，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35263876/