/*在进行类型检查时,请考虑'null'和'undefined'——null类型检测,const teacher: string = null;会报错*/// "strictFunctionTypes": true, /*分配函数时,请检查以确保参数和返回值与子类型兼容——对函数参数进行严格逆变比较*/// "strictBindCallApply": true, /*检查'bind'、...
// src/example.ts /** * 这是一个用于演示的类 */ class ExampleClass { /** * 这是一个用于演示的方法 * @param name - 姓名 * @param age - 年龄 * @returns 返回一个字符串,表示问候语和年龄 */ sayHello(name: string, age: number): string { return `Hello, ${name}! You are ${ag...
AI代码解释 importzfrom'zod'constappRouter=router({greeting:publicProcedure.input(z.object({name:z.string().nullish(),}),).query(({input})=>{return{text:`hello${input?.name??'world'}`,}}),}) 调用trpc.greeting.useQuery({ name: 'kuizuo' })发送的请求的 query 参数则变为 不仅于此,你...
radius ** 2; } else { // We know we're left with a square here! return shape.sideLength ** 2; } } 不仅是单一的判断,Typescript 4.4 还支持复合类型推导: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 function doSomeChecks( inputA: string | undefined, inputB: string | undefined...
TypeScript now reduces intersections with type variables and primitives more aggressively, depending on how the type variable’s constraint overlaps with those primitives. Copy declarefunctionintersect<T, U>(x: T, y: U): T & U; function foo<T extends"abc"|"def">(x: T, str:string,num: ...
type ClassMethodDecorator = (value: Function, context: { kind: "method"; name: string | symbol; static: boolean; private: boolean; addInitializer(initializer: (this: This) => void): void; }) => Function | void; 其value 参数为被装饰的类方法,可以通过返回一个新的方法来直接在原型层面代替...
{command:`_typescript.applyRenameFile`arguments:[{sourceUri:string;targetUri:string;},]} Response: void Configure plugin Request: {command:`_typescript.configurePlugin`arguments:[pluginName: string,configuration: any]} Response: void Code Lenses (textDocument/codeLens) ...
{", " type: String,", " default: '',", " },", " },", " // import引入的组件需要注入到对象中才能使用", " components: {},", " data() {", " // 这里存放数据", " return {", " form: {},", " formRules: {},", " }", " },", " // 生命周期 - 创建完成(可以访问...
“Control character in string: {a}.” : “在字符串中出现了Control的字符”, “Avoid \\’.” : “避免 \\”, “Avoid \\v.” : “避免 \\v”, “Avoid \\x-.” : “避免 \\x-”, “Bad escapement.” : “错误的转义字符”, ...
Aliases and Interfaces allows types to be easily shared between different variables/objects.Type AliasesType Aliases allow defining types with a custom name (an Alias).Type Aliases can be used for primitives like string or more complex types such as objects and arrays:ExampleGet your own Type...