Zhentiw - 博客园

2023年2月8日

[Typescript] Function overload :The "Instantiated with Subtype" Error

摘要： import { Equal, Expect } from "../helpers/type-utils"; const obj = { a: 1, b: 2, c: 3, } as const; type ObjKey = keyof typeof obj; //Type '"a"' is not 阅读全文

posted @ 2023-02-08 15:57 Zhentiw 阅读(24) 评论(0) 推荐(0) 编辑

[Typescript] Use Function Overloads to Avoid Returning undefined

摘要： // You'll need to use function overloads to figure this out! function useData<T>(params: { fetchData: () => Promise<T>; initialData?: T }): { getData: 阅读全文

posted @ 2023-02-08 14:18 Zhentiw 阅读(15) 评论(0) 推荐(0) 编辑

2023年2月6日

[Typescript] Global Scope

摘要： Define function / variable in global scope globalThis.myFunc = () => true; // doesn't compile globalThis.myVar = 1; // doesn't compile it("Should let 阅读全文

posted @ 2023-02-06 21:04 Zhentiw 阅读(21) 评论(0) 推荐(0) 编辑

[Typescript] Indexing an Object with Branded Types

摘要： In this exercise, we're going to look at a really interesting property of branded types when they're used with index signatures. Here we have our User 阅读全文

posted @ 2023-02-06 03:38 Zhentiw 阅读(17) 评论(0) 推荐(0) 编辑

2023年2月5日

[Node.js] Migration with Umzug

摘要： https://www.npmjs.com/package/umzug // index.js const { Sequelize } = require('sequelize'); const { Umzug, SequelizeStorage } = require('umzug'); cons 阅读全文

posted @ 2023-02-05 01:35 Zhentiw 阅读(57) 评论(0) 推荐(0) 编辑

[Node.js] Fetch csv data and parse

摘要： We use needleas a client on Node.js express server for fetching the data or site. https://www.npmjs.com/package/needle The leanest and most handsome H 阅读全文

posted @ 2023-02-05 01:32 Zhentiw 阅读(46) 评论(0) 推荐(0) 编辑

[Express] Add error handling middleware for express

摘要： Express app: import cors from 'cors'; import express, { Application } from 'express'; import routes from './routes'; import * as middlewares from './m 阅读全文

posted @ 2023-02-05 01:07 Zhentiw 阅读(24) 评论(0) 推荐(0) 编辑

[Utils] Create a logger helper

摘要： function getTimeNow() { const now = new Date().toLocaleTimeString( 'en-US', { hour12: false } ); return now; } function info(functionName: string, ... 阅读全文

posted @ 2023-02-05 01:03 Zhentiw 阅读(16) 评论(0) 推荐(0) 编辑

[CLI] Github workflow

摘要： name: Development pipeline on: pull_request: branches: - main jobs: Server: runs-on: ubuntu-22.04 steps: - name: Check files uses: actions/checkout@v3 阅读全文

posted @ 2023-02-05 00:42 Zhentiw 阅读(21) 评论(0) 推荐(0) 编辑

[Postgres Bash] Wait for database

摘要： Server wait for database get ready # From https://docs.docker.com/compose/startup-order/ #!/bin/sh # wait-for-postgres.sh set -e host="$1" shift # Log 阅读全文

posted @ 2023-02-05 00:37 Zhentiw 阅读(34) 评论(0) 推荐(0) 编辑

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