本文介绍了JavaScript函数是“函数"吗?或“对象"或两者?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在设法弄清Javascript函数的行为方式.它是功能还是对象,或者两者兼而有之?
I am trying to get my head around how Javascript function behaves. Is it a function or an object or both?
推荐答案javascript中的函数是一类对象.因此,它们既是函数又是对象.
Functions in javascript are first-class objects. So they're both functions and objects.
由于它们是第一类对象,因此您可以将变量分配给函数并为其提供属性,例如:
Because they are first class objects, you can assign a variable to a function and give it properties, eg:
var addName=function(){}; addName.blah = 1;如果它们不是一流的对象,那么您将只能使用这种语法,但是可以同时使用两种方法:
If they weren't first-class objects you'd be limited to this syntax but you can do it both ways:
function addName(){}更多推荐
JavaScript函数是“函数"吗?或“对象"或两者?
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