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1.3版本上用tsx建立的函数组件无法被识别,报错Taro is not defined #3122

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coolguy001tv opened this issue May 21, 2019 · 5 comments
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@coolguy001tv
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coolguy001tv commented May 21, 2019

问题描述
使用TS建立函数组件(后缀名为tsx)时,在1.3 beta1 beta3 (beta2版本未尝试)上均无法正常工作,报Taro is not defined。 但是如果将该函数组件后缀名改为JS则工作正常。

复现步骤
[复现问题的步骤]
有代码

import Taro from '@tarojs/taro'
import { View, Text } from '@tarojs/components'

function Header(){
  return (
    <View>
      <Text>Header</Text>
    </View>
  )
}
export default Header
  1. 命名为X.tsx,在任意正常页面引入(我测试的环境下是/pages/index/index.tsx)
  2. 执行yarn dev:h5
  3. 开发工具报错,报错信息见后文
  4. 将第一步的命名改为X.js,执行第1-2步,正常

期望行为
支持ts

报错信息

ReferenceError: Taro is not defined
    at eval (Header.js?b828:4)
    at Module../.temp/components/demo/Header.js (index_index.js:11)
    at __webpack_require__ (app.js:767)
    at fn (app.js:130)
    at eval (index.js:10)
    at Module../.temp/pages/index/index.js (index_index.js:47)
    at __webpack_require__ (app.js:767)
    at fn (app.js:130)

系统信息
Taro CLI 1.3.0-beta.1 environment info:
System:
OS: Windows 10
Binaries:
Node: 10.12.0 - C:\Program Files\nodejs\node.EXE
Yarn: 1.13.0 - C:\Users\CoolGuy\AppData\Roaming\npm\yarn.CMD
npm: 6.4.1 - C:\Program Files\nodejs\npm.CMD

补充信息
[根据你的调查研究,出现这个问题的原因可能在哪里?]
从编译后的文件来看,两者的主要差别在于ts下编译的结果少了一行taro/h5的引用,以下是编译后的文件:

import Nerv from "nervjs";
import { View, Text } from '@tarojs/components';

class Header extends Taro.Component {
  render() {
    return <View>
      <Text>Header</Text>
    </View>;
  }

}

export default Header;

能够看到的确Taro是没有定义的;
而JS后缀的名字,最终编译后的结果是:

import Nerv from "nervjs";
import Taro from "@tarojs/taro-h5";
import { View, Text } from '@tarojs/components';

class Header extends Taro.Component {
  render() {
    return <View>
      <Text>Header</Text>
    </View>;
  }

}

export default Header;

这样就不会出错了

@taro-bot
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taro-bot bot commented May 21, 2019

欢迎提交 Issue~

如果你提交的是 bug 报告,请务必遵循 Issue 模板的规范,尽量用简洁的语言描述你的问题,最好能提供一个稳定简单的复现。🙏🙏🙏

如果你的信息提供过于模糊或不足,或者已经其他 issue 已经存在相关内容,你的 issue 有可能会被关闭。

Good luck and happy coding~

@taro-bot
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taro-bot bot commented May 22, 2019

CC @Littly

@grepug
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grepug commented May 23, 2019

你在函数式组件中任意调一个hook就可以了。他们说下个版本修复。

@Littly
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Littly commented Jun 2, 2019

769bb08
1.3.0-beta.6版本已修复这个问题

@Littly Littly added answered and removed H5 labels Jun 2, 2019
@taro-bot taro-bot bot added the to be closed label Jun 2, 2019
@taro-bot
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taro-bot bot commented Jun 2, 2019

Hello~

您的问题楼上已经有了确切的回答,如果没有更多的问题这个 issue 将在 15 天后被自动关闭。

如果您在这 15 天中更新更多信息自动关闭的流程会自动取消,如有其他问题也可以发起新的 Issue。

Good luck and happy coding~

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