functionmyFunc(maybeString:string|undefined|null){// Type 'string | null | undefined' is not assignable to type 'string'.// Type 'undefined' is not assignable to type 'string'.constonlyString:string=maybeString;// ErrorconstignoreUndefinedAndNull:string=maybeString!;// Ok} 1.2 调用函数时忽略...
/* Raise error on expressions and declarations with an implied 'any' type. */// 对 null 类型检查,设置为 false 就不会报错了// "strictNullChecks": true, /* Enable strict null checks. */// "strictFunctionTypes": true, /* Enable
const fn=(value?:unknown)=>{if(Array.isArray(value)){return value.length;//编译通过}} 1. 2. 3. 4. 5. 使用is 关键词自定义类型守卫 {参数名称} is {参数类型},这个意思是告诉 TypeScript 函数 isString() 返回的是一个 string 类型。 复制 function isString(str:unknown):strisstring{return ...
const fn = (value?: unknown) => { if (Array.isArray(value)) { return value.length; // 编译通过 } } 使用is 关键词自定义类型守卫 {参数名称} is {参数类型},这个意思是告诉 TypeScript 函数 isString() 返回的是一个 string 类型。 function isString(str: unknown): str is string { retur...
replace packageurl-js with simple local function improve docs 1.7.* request -> axios fix dependencies doc fixes 1.6.* --breakOnWarningsand--breakOnViolations Bump devDependencies 1.5.* DescribeError: The programmatic API was removed in npm v8.0.0 ...
① node 修改 bin 我们期望像vue-cli那样 ,通过自定义的命令行vue create,开始创建一个项目,首先能够让程序终端识别我们的自定义指令,我们首先需要修改bin。 例子: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 mycli create 我们希望的终端能够识别mycli,然后通过mycli create创建一个项目。实际上流程大致是...
Note that ts-proto is not an out-of-the-box RPC framework; instead it's more of a swiss-army knife (as witnessed by its many config options), that lets you buildexactlythe RPC framework you'd like on top of it (i.e. that best integrates with your company's protobuf ecosystem; fo...
}, function (error) { return Promise.reject(error) }) // 响应拦截器 request.interceptors.response.use(function (response) { // 统一处理接口响应错误,如 token 过期无效、服务端异常等 if (response.data.status && response.data.status !== 200) { ...
handler function that* will be called if the pattern matches the input value.** [Read the documentation for `.with()` on GitHub](https://github.com/gvergnaud/ts-pattern#with)**/with<constpextendsPattern<i>,c,valueextendsMatchedValue<i,InvertPattern<p,i>>>(pattern:IsNever<p>extendstrue...
node_modules/openai/src/lib/AbstractChatCompletionRunner.ts(224,28): error TS7030: Not all code paths return a value. I also had to disable thenoImplicitAnyrule sinceopenaiis not built, and then my app build inherits your source code basically. ...