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Creational patterns provide object creation mechanisms that increase flexibility and reuse of existing code. Factory method: Provides an interface for 阅读全文
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Just for fun... Given a number (always positive) as a type. Your type should return the number decreased by one. For example: type Zero = MinusOne<1> 阅读全文
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Blog: https://www.geeksforgeeks.org/es6-trampoline-function/ Stackoverflow problem for recursion: const sumBelow = (number, sum = 0) => ( number 0 ? s 阅读全文
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Serverless framework with AWS Link to each sections Table of Content: Part 0: Serverless Project structure Part 1: DynamoDB & ApiGateway Part 2: Event 阅读全文
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Storage Services: S3 Glacier CloudFront Elastic Block Store (EBS) Storage Gateway Snow family Database Overview Block storage: Used on local networks 阅读全文
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S3 Features Prefiees and delimiters For example: the file name in S3 can be: `marking/plans/kpi_2021_1.pdf`. The point is make it looks like a folder 阅读全文
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In our previous code, we have seen this partten for operators: // #region operators const concat = curry((broadcaster, listener) => { let string = ''; 阅读全文
该文被密码保护。 阅读全文
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Generators can yield promises which can work with the "for await of" loop syntax. This lesson shows how all the pieces fit together and explains why t 阅读全文
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In this post, we are going to see how to use Ramda Lens. For example, we have data: R.lens: R.lens takes a getter and a setter: R.lensProp: There is a 阅读全文
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Just like the State ADT an Array is also an Applicative Functor. That means we can do the same tricks with liftA2 with Array that we have been doing w 阅读全文
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Use custom Cypress command for reusable assertions We’re duplicating quite a few commands between the registration and login of our user for assertion 阅读全文
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Use Cypress to test user registration Let’s write a test to fill out our registration form. Because we’ll be running this against a live backend, we n 阅读全文
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Despite the fact that Cypress is an application that runs natively on your machine, you can install it and add it as a dependency just like all other 阅读全文
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Ensure Functions are Called Correctly with JavaScript Mocks Often when writing JavaScript tests and mocking dependencies, you’ll want to verify that t 阅读全文
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1. Color Picker (Chrome) You might know how to use color picker in Chrome, recently there is a feature inside color picker which is "Contrast Ratio", 阅读全文
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We'll examine how to unnest function calls, capture assignment, and create a linear data flow with a type we call Box. This is our introduction to wor 阅读全文
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Well, this stuff will be a little bit strange if you deal with it first time. Container Object: Just a wrapper / contianer for values No Method No Nou 阅读全文
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First, what is 'High Order function', basic just a function, inside the function return another fuction. For example: Decorators is a subset of high o 阅读全文
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Somehow it looks like reflect in Java. For example: We define an mothod on the Object, it called defineMethod(). It accepts two arguements, one is met 阅读全文
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Offical plugins: https://cn.vitejs.dev/plugins/ Commuity plugins: https://github.com/vitejs/awesome-vite#plugins Rollup plguins: https://vite-rollup-p 阅读全文
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@use 'sass:math'; @use 'sass:string'; html { background: radial-gradient(ellipse at bottom, #1b2735 0%, #090a0f 100%); height: 100%; width: 100%; over 阅读全文
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一、k8s概念介绍 1、k8s介绍 kubernetes，简称K8s，是用8代替8个字符“ubernete”而成的缩写。是一个开源的，用于管理云平台中多个主机上的容器化的应用，Kubernetes的目标是让部署容器化的应用简单并且高效（powerful）,Kubernetes提供了应用部署，规划，更 阅读全文
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In vite.config.ts resolve: { alias: { "@": path.resolve(__dirname, "src"), "@assets": path.resolve(__dirname, "src/assets"), }, }, tsconfig.json "comp 阅读全文
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PreProcessor Using Scss Install: pnpm add sass -D Code: // filename: src/views/404.vue <template> <div title="404">404</div> <p>Page Not Found</p> </t 阅读全文
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The key differences between CommonJS (CJS) and ECMAScript Modules (ESM) come down to their execution model. CommonJS (CJS) Synchronous: Each require() 阅读全文
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同源策略及跨域问题 同源策略是一套浏览器安全机制，当一个源的文档和脚本，与另一个源的资源进行通信时，同源策略就会对这个通信做出不同程度的限制。 简单来说，同源策略对 同源资源 放行，对 异源资源 限制 因此限制造成的开发问题，称之为跨域（异源）问题 同源和异源 源(origin) = 协议 + 域名 阅读全文
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<!doctype html> <html lang="en"> <head> <meta charset="utf-8"/> <title>Animation for auto height</title> <style> .btn { position: relative; border: no 阅读全文
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前面讲的都是在git提交之前的一些流程检查，而当我们git提交的时候，提交信息，也应该是需要规范的 commitlint 在使用Git提交代码时，通常都需要填写提交说明，也就是Commit Message git commit -m '提交测试' 说白了，Commit Message就是我们提交的时 阅读全文
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Git 流程规范配置 在前端项目开发中，规范git提交信息，也是经常使用的手段，如何确保团队成员都遵循ESint规则，且不会将不符合规范的代码推送到Git仓库？ 答案是：使用带有git hooks功能的husky。git hooks是git内置的功能，它会在执行Git命令之前（或之后）进行一些其它操 阅读全文