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【已解决】ReactJS中如何实现公用的全局函数

ReactJS crifan 1896浏览 0评论

此处已经有代码:

export default class DeviceManagement extends Component {
  unbindCowDevice(){
    console.log("unbindCowDevice");
    let url = "/equipment/equipment/cancelBind";
    let postJson = {
      "equipment_num" : this.clickedItem.equipment_num
      //TODO: chagne to unbind by cow code
      // "cow_code" : this.clickedItem.cow_code
    };
    console.log(postJson);
    alert(JSON.stringify(postJson));
    this.props.fetch(
      url,
      {
        method : "POST",
        headers : {
          ‘Content-Type’: ‘application/json’,
          ‘Accept’: ‘application/json’
        },
        body: JSON.stringify(postJson)
      },
      (data) => {
        console.log(data);
        // alert(JSON.stringify(data));
        let cancelBindOk = data;
        console.log(`Cancel bind device code ${postJson.equipment_num} result: ${cancelBindOk}`);
        if (cancelBindOk) {
          this.fetchDeviceList();
        } else {
          console.log(`Cancel bind device code ${postJson.equipment_num} failed`);
        }
      }
    );
  }
}

现在想要实现:

把这个函数弄成全局的helper之类的函数,供其他地方调用。

并且把代码放到更加合适的位置

而不是某个单独的Component中。

react js global helper function

components – ReactJs Global Helper Functions – Stack Overflow

Webpack CommonJS

commonjs

CommonJS模块打包 · webpack指南

ES6 modules compatibility with commonjs · Issue #2945 · webpack/webpack

CommonJS 规范 | Webpack 中文指南

好像就是之前见过的export function ?

然后别处即可调用?

reactjs – How to create helper file full of functions in react native? – Stack Overflow

How to create global helper function in react native? – Stack Overflow

Global jsx file for utility classes used across app – React Discuss

ReactJs Global Helper Functions – function – components – reactjs – global-methods – TechQA

Where to put helper functions in a React component?:reactjs

【总结】

最后,是把对应的函数弄到另外的一个文件中,然后别处再import对应函数:

src/lib/deviceHelper.js

export function unbindCowDevice(props, deviceCode, callback){
  console.log("deviceHelper unbindCowDevice");
  let url = "/equipment/equipment/cancelBind";
  let postJson = {
    "equipment_num" : deviceCode
  };
  console.log(postJson);
  // alert(JSON.stringify(postJson));
  props.fetch(
    url,
    {
      method : "POST",
      headers : {
        ‘Content-Type’: ‘application/json’,
        ‘Accept’: ‘application/json’
      },
      body: JSON.stringify(postJson)
    },
    (data) => {
      callback(data);
    }
  );
}

别处调用:

src/container/device-management/index.js

import {unbindCowDevice} from ‘../../lib/deviceHelper.js’;
export default class DeviceManagement extends Component {
  constructor(props) {
    super(props);
    autoBind(this);
    this.onConfirm = this.onConfirm.bind(this);
    this.unbindCallback = this.unbindCallback.bind(this);
  }
  onConfirm(){
    console.log("onConfirm");
    unbindCowDevice(this.props, this.clickedItem.equipment_num, this.unbindCallback);
  }
  unbindCallback(data){
    console.log("unbindCallback");
    console.log(data);
    // alert(JSON.stringify(data));
    let cancelBindOk = data;
    console.log(`Cancel bind device code ${this.clickedItem.equipment_num} result: ${cancelBindOk}`);
    if (cancelBindOk) {
      this.fetchDeviceList();
    } else {
      console.log(`Cancel bind device code ${this.clickedItem.equipment_num} failed`);
    }
    this.onCancel();
  }
}

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