05 2023 档案
摘要:最早直接采用brew安装,如下: brew install node@18 brew uninstall node@18 // 卸载 但学习的项目用的是老版本node,所以卸载了,用NVM来管理多版本node,参考这篇文章: https://blog.bigoodyssey.com/how-to-m
阅读全文
摘要:我在terminal中设置了proxy后,开启proxyon后,执行npm install包错误: (proxyon是通过在~/.zshrc 中添加export http_proxy来实现的) 把proxyoff后,错误又没有了,不知道是啥问题。如果碰到这个问题就用: npm config set
阅读全文
摘要:摘抄自react in action , see chapter4: 直接上图: DEFINITION Mounting is the process of React inserting your components into the real DOM. Once done, your comp
阅读全文
摘要:摘抄自:https://medium.com/@agzuniverse/webpack-and-babel-what-are-they-and-how-to-use-them-with-react-5807afc82ca8 Webpack and Babel — Tools we can’t cod
阅读全文
摘要:What is this? In JavaScript, the this keyword refers to an object. Which object depends on how this is being invoked (used or called). The this keywor
阅读全文
摘要:import React, { Component } from "react"; import { render } from "react-dom"; import PropTypes from "prop-types"; const node = document.getElementById
阅读全文
摘要:see: https://legacy.reactjs.org/blog/2015/12/18/react-components-elements-and-instances.html https://www.robinwieruch.de/react-element-component/ http
阅读全文
摘要:参考: https://segmentfault.com/a/1190000007535316 https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise https://devel
阅读全文
摘要:js中的prototype绝对是js的一个重要知识点,有点像delegate的模式,和oop对象形式还是有些差别的,尽管可以做同样的事情。 简要学习可以参见:https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Objects/Objec
阅读全文
摘要:我们可以这样create一个object: const person1 = { name: "Chris", introduceSelf() { console.log(`Hi! I'm ${this.name}.`); }, }; 但是当我们需要创建多个对象的时候,每次都要重复同样的code,这时
阅读全文