functionadd(num1,num2){varsum=num1+num2;returnsum;}console.log(add(1,2));// 3 return语句在函数中可以停止并立即退出,return语句可以不带有任何返回值,用于停止函数执行。 arguments是ecmascript中的参数在内部用一个数组表示,arguments对象只是与数组类似,并不是array的实例,[]语法用于访问它的每一个元素。
constmyRevealingModule=(function(){letprivateVar='Peter';constpublicVar='Hello World';functionprivateFunction(){console.log('Name: '+privateVar);}functionpublicSetName(name){privateVar=name;}functionpublicGetName(){privateFunction();}/** reveal methods and variables by assigning them to object pr...
if(Office.context.requirements.isSetSupported(RequirementSetName, MinimumVersion)) {// Code that uses API members from RequirementSetName.} 备注 Office 预览体验计划 若要在任何 Office 主机上实现最早或每月更改,可以加入 Office 预览体验计划。 此计划仅适用于 Windows 电脑,需要 Microsoft 365 订阅。 从任意...
Since offsets are optional, setting one requires you to set the appropriate CSS. In this case, add position: absolute; when necessary. The plugin uses the data attribute or JavaScript option to determine where to position the element from there. Follow the above steps to set your CSS for ...
Here’s where we make a shift between passing in a single piece of data from our app’s “model” (that is, the set of data that has nothing to do with the display of itself) to grouping the data that’s appropriate for our “view” of that model (in this case, the current pers...
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In this case, add position: absolute; when necessary. The plugin uses the data attribute or JavaScript option to determine where to position the element from there. Follow the above steps to set your CSS for either of the usage options below. Via data attributes To easily add affix behavior...
letters.add("c"); letters.add("c"); letters.add("c"); letters.add("c"); Try it Yourself » Listing Set Elements You can list all Set elements (values) with afor..ofloop: Example // Create a Set constletters =newSet(["a","b","c"]); ...
letters.add("c"); Try it Yourself » Learn more about Set objects in the the chapter:JavaScript Sets. JavaScript Classes JavaScript Classes are templates for JavaScript Objects. Use the keywordclassto create a class. Always add a method namedconstructor(): ...
An Office service that supports add-ins to interact with objects in Office client applications. 1,057 questions 0 answers office.js:76 Uncaught Error: Office.js has not fully loaded. Your app must call "Office.onReady()" as part of it's loading sequence (or set the "Office.initialize" ...