Question

我想使用所有系统库或函数所在的外部.js文件。例如文件名sysFunction.js

import React from 'react';
function currYear() {
var year = new Date().getFullYear();
 return year;
 }

现在我调用此函数的文件

import React, { Component } from 'react';
import ReactDom from 'react-dom';`
import Logo from "../../../assets/app/media/img//logos/logo-1.png";
import sysFunction from "../SysFunctions/SysFunction";
export default class Login extends Component {
    render(){
       return({currYear()});
    }
}

我的函数实际上驻留在另一个文件中，该文件通常不是组件文件。

Answer 1

您可以尝试这样

    import React from 'react';
    export function currYear() {
       var year = new Date().getFullYear();
        return year;
     }

    import React, { Component } from 'react';
    import ReactDom from 'react-dom';`
    import Logo from "../../../assets/app/media/img//logos/logo-1.png";
    import { currYear } from "../SysFunctions/SysFunction";
    export default class Login extends Component
      {
       render(){
          return({currYear()}
       );
      }
    }

从外部文件中调用js函数调用

1 个答案: