作者:Marcin Wanago 翻译:疯狂的技术宅 原文:https://wanago.io/2018/09/17/javascript-testing-tutorial-part-four-mocking-api-calls-and-simulation-react-components-interactions/ 未经允许严禁转载 JavaS…
importReact,{Component}from'react';importTaskfrom"../Task/Task";importaxiosfrom'axios';classToDoListextendsComponent{state={tasks:[]}componentDidMount(){returnaxios.get(`${apiUrl}/tasks`).then(tasksResponse=>{this.setState({tasks:tasksResponse.data})}).catch(error=>{console.log(error);})}...
JavaScript is already running in your browser on your computer, on your tablet, and on your smart-phone. JavaScript is free to use for everyone. JavaScript Exercises Many chapters in this tutorial end with an exercise where you can check your level of knowledge. ...
"url": "https://github.com/creativetimofficial/react-webpack-babel-tutorial/issues" }, "homepage": "https://github.com/creativetimofficial/react-webpack-babel-tutorial#readme", "devDependencies": { "@babel/core": "7.0.1", "@babel/node": "7.0.0", "@babel/preset-env": "7.0.0", ...
React 是一个十分优秀的UI库, 最初的时候, React 只专注于UI层, 对全局状态管理并没有很好的解决方案, 也因此催生出类似Flux, Redux 等优秀的状态管理工具。 随着时间的演变, 又催化了一批新的状态管理工具。 简单整理了一些目前主流的状态管理工具:
4. JavaScript测试教程–part 4:模拟 API 调用和模拟 React 组件交互 在上一篇教程中,我介绍了使用 Enzyme 测试 React 组件的基础知识。今天,将进行更深入的研究,并学习如何测试 props,如何(以及为什么)使用 mount 函数以及什么是快照测试。开始吧! 测试props 在上一篇文章中,我们测试了通过一些 props 的结果。但是...
你可以在任何编辑器中编辑本项目中的文件。本教程使用增强的 "MarkDown" 格式,易于掌握。而且,如果你想在本地预览效果,我们也提供了一个可以在本地运行本教程的服务端https://github.com/javascript-tutorial/server。 详细贡献者列表请见https://javascript.info/about#contributors。
Ready to dive into the React framework? This tutorial shows how to mix JavaScript and React with object-oriented programming to lessen the learning curve.
You can change the style and position of the elements on a web page. You can monitor events like mouse click, hover, etc. and react to it. You can perform and control transitions and animations. You can create alert pop-ups to display info or warning messages to the user. You can per...
and allow you to save wallpapers of your choice to the Camera Roll. Believe me, I have found myself using this app more than I initially thought. Even if by the end of this tutorial React Native fails to impress you, you’ll still end up having a really cool wallpaper a...