TypeScript objects are similar to JavaScript objects, but with the added benefit of static typing. This means we need to be more explicit about the structure of our objects, which ultimately leads to more robust
typescript TypeError: Cannot add property 1, object is not extensible↵ at Array.push (< anonym...
Add a new type Required#15012 New issue Closed #21919 It would be nice to have a new type that allows property to be required as opposited toPartial: interfaceX{x?:string}Required<X>{};// Property 'x is missing in type '{}' ...
TypeScript 复制 load(propertyNamesAndPaths?: OfficeExtension.LoadOption): Excel.ShapeCollection; 参数 propertyNamesAndPaths OfficeExtension.LoadOption propertyNamesAndPaths.select 是一个逗号分隔的字符串,指定要加载的属性,是 propertyNamesAndPaths.expand 一个逗号分隔的字符串,指定要加载的导航属性。 返回 ...
TypeScript类装饰器- add类方法如何用TypeScript和装饰器定义属性？例如，我有这个类装饰器：据我所知，...
先看下面这段代码,会报错:Uncaught TypeError: Cannot read property ‘push’ of undefined。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 // javascript中所谓的类就是函数 function MyParent(id) { this.id = id; } MyParent.funcA = function(){ console.log("funcA in object"); } MyParent...
TypeScript 复制 getActiveShape(): Excel.Shape; 返回 Excel.Shape 注解 [ API 集:ExcelApi 1.19 ]getActiveShapeOrNullObject() 获取工作簿中的活动形状。 如果没有活动形状,则此方法返回一个 对象,其 isNullObject 属性设置为 true。 有关详细信息,请参阅 *OrNullObject 方法和属性。 TypeScript 复制...
TypeScript コピー load(propertyNames?: string | string[]): Excel.TableColumnCollection; パラメーター propertyNames string | string[] 読み込むプロパティを指定するコンマ区切り文字列または文字列の配列。 戻り値 Excel.TableColumnCollection 例 TypeScript コピー await Excel.run(async (...
只要每个事件处理程序函数的名称唯一,就可以为指定的 eventType 添加多个事件处理程序。 示例 TypeScript // The following code sample calls the select function of the Office object to access the binding// with ID "MyBinding", and then calls the addHandlerAsync method to add a handler function// fo...
TypeScript 复制 // The following example shows how to: // 1. Create an object literal that specifies the table formatting options to update on the bound table. // 2. Call setTableOptions on a previously bound table (with an id of myBinding) passing the object // with formatting ...