javascript - JavaScripts参数选项(JavaScripts Parameter Options)

Question

I just wanted to know that how can I create an object or options (whatever it is).(我只是想知道我该如何创建对象或选项（无论它是什么）。)

I have created a js file with functions named popupModal()(我已经创建了一个名为popupModal（）的js文件。) for now, I'm using this function like this(目前，我正在使用此功能) popupModal(param1,param2,param3,param4,param5,param6) while calling if I don't want some parameter I have to write this.(在调用时，如果我不需要某些参数，则必须编写此代码。) popupModal(param1,undefined,param3,undefined,undefined,param6) can someone please tell me how can I modify my function so whenever I use this function I can call it like(有人可以告诉我如何修改我的功能吗，所以每当我使用此功能时，我都可以像这样) popupModal ({ param2: someValue, param6: someValue });   ask by Okasha Momin translate from so

Answer 1

To do what you require you need to accept a single object as an argument.(要执行您需要的操作，您需要接受一个对象作为参数。)

popupModal({ param2: 'foo', param6: 'bar' }); function popupModal(settings) { console.log(settings.param2); console.log(settings.param6); } If you wanted some parameters to be optional then you can define an object within your function which contains the default values.(如果希望某些参数是可选的，则可以在函数中定义一个包含默认值的对象。) Then you can use jQuery's $.extend() method to overwrite it with the user defined settings:(然后，您可以使用jQuery的$.extend()方法用用户定义的设置覆盖它：) popupModal({ param2: 'foo', param6: 'bar' }); function popupModal(settings) { var defaults = { param1: '1', param2: '2', param3: '3', param4: '4', param5: '5', param6: '6', } settings = $.extend(defaults, settings); console.log(settings.param1); console.log(settings.param2); console.log(settings.param3); console.log(settings.param4); console.log(settings.param5); console.log(settings.param6); } <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>