jsx

Return JSX component onPress react-native

由 一笑奈何 提交于 2021-01-28 08:38:21
问题 I want to prompt users to get input onPress but returning JSX from an onPress never worked so whats a possible workaround to return JSX based on button click. Here's my code: import React, { useState } from 'react'; import { StyleSheet, KeyboardAvoidingView, View, Text, TouchableOpacity } from 'react-native'; import InputPrompt from './InputPrompt' const Newact = (props) => { const [visible, setVisible] = useState(false) return( <View> <View style={styles.button} > <TouchableOpacity style=

dispatch is not accessible from useContext

由 橙三吉。 提交于 2021-01-28 08:23:28
问题 i have simple store import React, { createContext, useReducer } from "react"; import Reducer from "./UserReducer"; const initialState = { user: {}, error: null }; const Store = ({ children }) => { const [state, dispatch] = useReducer(Reducer, initialState); return ( <Context.Provider value={[state, dispatch]}> {children} </Context.Provider> ); }; export const Context = createContext(initialState); export default Store; i have wrapped my app with it like <Store> <ThemeProvider theme={Theme}>

How to add color to a specific part of a string in React using replace?

由 一世执手 提交于 2021-01-28 04:22:20
问题 I'd like to make all the numbers in a string red and then render it with React. Here's what I'm trying to do (I've made an app using create-react-app and replaced the contents of App.js with my own): import React, { Component } from 'react'; import './App.css'; class App extends Component { render() { const str = 'foo123bar'; const strColor = str.replace(/\d+/, match => <span style={{color: 'red'}}> {match} </span> ); return ( <div className="App"> {strColor} </div> ); } } export default App;

Parse a JSX file to extract the attributes of the Import statement

由 时间秒杀一切 提交于 2021-01-27 14:50:47
问题 There is a jsx file with contents <import name="abcd" color="green" age="25" /> <View color={dsdssd}> <IBG color={[color.imagecolor, color.image125]} imageStyle={[styles.imageStyle, styles.image125]} source={{ uri: contents.aimeecard }} > <View color={styles.titleContainer}> <Text color={[{green: 45}, styles.mainTileText]}</Text> <View color={[abcde.text]} /> </View> </View> I need to fetch the details of first line using python script: Expected output name="abcd" color="green" age="25" Also

how to include external javascript in react

由 生来就可爱ヽ(ⅴ＜●) 提交于 2021-01-27 13:02:44
问题 In an html page you can include a javascript file by <script src="path"></script> How do you get variables from an external path like this in react, if the path is, for example: <script src="https://unpkg.com/flux-sdk-helpers@0.1/dist/flux-sdk-helpers.min.js"></script> Thanks for all your help 回答1: Scripts loaded in that fashion normally install themselves as global variables and/or properties of some other global library. According to the docs, flux-sdk-helpers installs itself as a global

我来聊聊面向模板的前端开发

由 ↘锁芯ラ 提交于 2021-01-24 11:46:40
在软件开发中，研发效率永远是开发人员不断追求的主题之一。于公司而言，在竞争激烈的互联网行业中，产出得快和慢也许就决定着公司的生死存亡；于个人而言，效率高了就可以少加班，多出时间去提升自己、发展爱好、陪伴家人，工作、生活两不误。 提升效率的途径，无外乎就是「方法」和「工具」。以一个开发者的思维来想，就是将工作内容进行总结、归纳，从一组相似的工作内容中提炼共同点，抽象出解决这一类问题的方法，从而造出便于在今后的工作中更为快速解决这类问题的工具。这个「工具」可以是个函数、组件、中间件、插件，也可以是 IDE、其他开发工具的扩展，甚至是语言。 面向组件 在现代前端开发中，如果去问一个业务前端开发：「如何提升团队开发效率？」对方所回答的内容中，极有可能会出现「组件库」。没错，在前端工程化趋近完善的今天，在近几年 React、Vue 等组件化库/框架的影响下，面向组件开发的思维方式早已深入人心。 组件库提效有限 现在，组件库已经是一个前端团队的必备设施了，长远来看，团队一定且必须要有自己的组件库。开源的第三方组件库再好，对于一家企业的前端团队来说也只是短期用来充饥的，因为它们无法完全满足一家公司的业务场景，并且出于多终端支持的考虑，必定要进行二次开发或者自研。 组件库有了，团队和公司中推广的效果也不错，绝大多数的人都在用。使用组件开发页面相对 jQuery 时代要每块功能区都得从 <span>

React17+React Hook+TS4 最佳实践 仿 Jira 企业级项目

由 送分小仙女□ 提交于 2021-01-21 21:03:33
download： React17+React Hook+TS4 最佳实践 仿 Jira 企业级项目 React17 + React Hook + TypeScript4 已成为大型React 项目质量保证的代名词，更是 2021年优秀 React 开发者必备的技术。本课程将通过完成一个功能强大的任务管理项目，带领大家掌握最佳实践，全方位提升开发效率、开发质量和技术能力。 技术要求 有 React 基础 环境参数 React 17.0.1 / TypeScript 4.0.5 / react-router : 6.0.0 / create-react-app 4.0.1 react-query: 1.0.0 / emotion: 10.0.35 / cypress: 6.1.0 / jest: 26.6.3 章节目录： 第一章课程介绍(本课程是必看的)试看 介绍了课程整体的背景知识、能解决什么问题、学习后能得到什么、学习方法和学习前提。 总共保存2节(12分钟)列表 1-1课程指南(11:06 )试试 下载1-2课程源 第二章项目出航：项目初始化与配置 本章介绍Create-React-App初始化项目。 然后，构成eslint检查代码质量、prettier检查代码格式、commitlint检查提交信息，规范流程。 最后配置优秀的后端mock方案，在JSON SERVER第3

Configure Emmet for JSX in VSCode

由 白昼怎懂夜的黑 提交于 2021-01-20 19:11:07
问题 I use css like this: const styles = { foo: { color: 'red' } } <div className={styles.foo} /> and I want emmet to expand .foo to <div className={styles.foo}></div> I don't see any reference to class or className in emmet's config file. Also looked into preferences.json and didn't find a solution. It seems very simple to do. What am I missing here? my code editor is vscode. Thanks in advance for help :) 回答1: Emment configuration or enabling is editor specific. In VSCode, You need to enable it

Configure Emmet for JSX in VSCode

由 霸气de小男生 提交于 2021-01-20 19:09:55
问题 I use css like this: const styles = { foo: { color: 'red' } } <div className={styles.foo} /> and I want emmet to expand .foo to <div className={styles.foo}></div> I don't see any reference to class or className in emmet's config file. Also looked into preferences.json and didn't find a solution. It seems very simple to do. What am I missing here? my code editor is vscode. Thanks in advance for help :) 回答1: Emment configuration or enabling is editor specific. In VSCode, You need to enable it

Configure Emmet for JSX in VSCode

由 假如想象 提交于 2021-01-20 19:06:30
问题 I use css like this: const styles = { foo: { color: 'red' } } <div className={styles.foo} /> and I want emmet to expand .foo to <div className={styles.foo}></div> I don't see any reference to class or className in emmet's config file. Also looked into preferences.json and didn't find a solution. It seems very simple to do. What am I missing here? my code editor is vscode. Thanks in advance for help :) 回答1: Emment configuration or enabling is editor specific. In VSCode, You need to enable it
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