loadResource(path: string, method: string, headerString: string, requestData: string, binary: boolean, promise: any, timeout: number): number; loadResourceSync(path: string, method: string, headerString: string, requestData: string, binary: boolean, promise: any, timeout: number): void; ht...
AI代码解释 interfacePerson{name:string;age?:number;}functionprintPersonInfo(person:Person){if("age"inperson){// 在这个块内,TypeScript 知道 person 对象有 age 属性console.log(`${person.name}is${person.age}years old.`);}else{// 在这个块内,TypeScript 知道 person 对象没有 age 属性console.lo...
(prefer-const)tslint(1) 把let换成const即可 Shadowed name: 'id' (no-shadowed-variable)tslint(1) 似乎不能用id命名,改其他命名即可 Type 'string' is not assignable to type '"" | "success" | "error" | "warning" | "validating"'.ts(2322) vldStatus 已经是'success'了,但是还是报错: 定义一...
interfaceSomeMessage{firstName:string;lastName:string;}// Declared with a typoconstdata={firstName:"a",lastTypo:"b"};// With useOptionals=none, this correctly fails to compile; if `lastName` was optional, it would notconstmessage:SomeMessage={...data}; For a consistent API, ifSomeMessag...
to retry until a function returns something defined (aka not null neither not undefined): // in all cases results is a string and cannot be null or undefinedconstresult=awaitretryUntilDefined(():string|undefined=>{...}));constresult=awaitretryUntilAsyncDefined(():Promise<string|null>=>{.....
import { TextDecoder } from 'util'; const encoding = 'utf-8'; const data = new Uint8Array([72, 101, 108, 108, 111]); // 示例二进制数据 const decoder = new TextDecoder(encoding); const decodedString = decoder.decode(data); console.log(decodedString); // 输出:Hello TextDecoder的优势...
2410 错误 The 'with' statement is not supported. All symbols in a 'with' block will have type 'any'. "with" 块内的所有符号都将被解析为 "any"。 2411 错误 Property '{0}' of type '{1}' is not assignable to string index type '{2}'. 类型“{1}”的属性“{0}”不能赋给字符串索...
A pattern is a description of the expected shape of your input value. Patterns can be regular JavaScript values ("some string", 10, true, ...), data structures (objects, arrays, ...), wildcards (P._, P.string, P.number, ...), or special matcher functions (P.not, P.when, P....
message string 是 表示要打印的错误信息。 arguments any[] 否 表示其余要打印的信息或message的替换值。 示例: 收起 深色代码主题 复制 const str = "value is not defined"; console.error('error: %d', str); // 格式化输出替换message中的文本。 // error: value is not defined // S...
error TS2322: Type 'string[] | Option[]' is not assignable to type 'readonly string[] | undefined'. 160 :items="options" ~~~ node_modules/vuetify/lib/components/index.d.ts:34228:5 34228 items?: readonly T_1[] | undefined; ~~~ The expected type comes from property 'items' which...