map(x => x * 2); // Output: // 2 // 4 // 6 // 8 // 10 for (const value of evenNumbers.take(5)) { console.log(value); } The same is true for methods like keys(), values(), and entries() on Maps and Sets. Copy function invertKeysAndValues<K, V>(map: Map<K, ...
'@typescript-eslint/prefer-namespace-keyword': 'error', // 私有变量如果没有在构造函数外被赋值,则必须设为 readonly '@typescript-eslint/prefer-readonly': 'off', // 函数的参数必须设置为 readonly '@typescript-eslint/prefer-readonly-parameter-types': 'off', // 使用 reduce 方法时,必须传...
初始化带readonly字段的类 TypeScript 代码语言:TypeScript 复制 let o1 = {n: 42, s: "foo"} let o2: Object = {n: 42, s: "foo"} let o3: object = {n: 42, s: "foo"} let oo: Object\[\] = \[{n: 1, s: "1"}, {n: 2, s: "2"}\] class C2 { s: string constructo...
TypeScript may still perform as much type-checking as possible to generate.d.tsfiles. In this sense,--noCheckis a bit of a misnomer; however the process will be lazier than a full type-check, only calculating the types of unannotated declarations. This should be much faster than ...
也完全不会产生歧义或理解上的困难 'no-div-regex': 0, // 函数参数禁止重名 'no-dupe-args': 2, // 禁止对象出现重名键值 'no-dupe-keys': 2, // 类方法禁止重名 'no-dupe-class-members': 2, // 禁止 switch 中出现相同的 case 'no-duplicate-case': 2, // 禁止重复 import 'no-duplicate...
// loader.mjs import { readFileSync } from 'node:fs' import { fileURLToPath } from 'node:url' import { transformSync } from '@swc/core' const extensionsRegex = /\.m?ts$/ export async function load(url, context, nextLoad) { if (extensionsRegex.test(url)) { const rawSource = ...
string().regex(regex); z.string().includes(string); z.string().startsWith(string); z.string().endsWith(string); z.string().datetime(); // ISO 8601; by default only `Z` timezone allowed z.string().ip(); // defaults to allow both IPv4 and IPv6 z.string().cidr(); // ...
Update: In my case this is only a problem for Single File Components. Debugging in typescript files seems to have correct line numbers. It does suggest that the problem is in sourcemap generation for SFCs. Is there a way to get some more eyes on this? 👍 6 qq1063823095 commented Jan...
returnarrayElement.url.match(regex); }); } We're telling TypeScript that "input" is a string but later in the code we call thefilter methodon it, which belongs to arrays. What we really want instead is marking "input" as an array of something, maybe an array of strings?
Iteration withdescendOnceanddescendworks well if the performance is irrelevant. However, if the performance matters, this is not a good approach. First, all the children will be visited (even though you need only a small subset). Second, you execute the loop body on every single instance in...