typescript TypeError: Cannot add property 1, object is not extensible↵ at Array.push (< anonym...
为对象动态添加属性的几种方法方法一:使用索引签名在 TypeScript 中,我们可以使用索引签名来动态添加属性到对象上。...### 为对象动态添加属性的几种方法### 方法一:使用索引签名在 TypeScript 中,我们可以使用索引签名来动态添加属性到对象上。...方法二:使用类定义对象另一种避免动态添加属性问题的方法是使用类...
In the above code, we have used the square bracket notationperson["height meter"]to add height to the Object person. Use Dot Notation to Add Properties to JavaScript Objects constperson={name:'Dave',age:5,gender:'male'}person.height=2.1;console.log(person); ...
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 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 复制 load(propertyNamesAndPaths?: OfficeExtension.LoadOption): Excel.WorksheetCollection; 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...
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 '{}' ...
Check if updating to the latest Preact version resolves the issue Describe the bug In a big application we switched from CRA to preact with vite. The app runs fine and now I want to fix the unit tests. However, I keep getting the error m...
The include property specifies the files to be included in the TypeScript project, you might need to change it to your own project path. .├── package.json ├── src ├── tsconfig.json └── webpack Update frontend/webpack/webpack.common.js const getEntryObject = () => { cons...
TypeScript 复制 // Get the Document object with the Common APIs. const document : Office.Document = Office.context.document; 属性展开表 bindings 获取提供对文档中定义的绑定的访问的对象。 customXmlParts 获取文档中表示自定义 XML 部件的对象。 mode 获取文档所处的模式。 settings 获取用于表示当前...