_renderIndex if not a function-CodePudding

I have the following code

module.exports = {
    _renderIndex: async (req, res) => {
       console.dir("test");
    },
    index: async (req, res) => {
          this._renderIndex(req, res, {});
     }
 };

Unfortunately, when I run the function index, I get the error this._renderIndex is not a function. Can someone please tell me why?

CodePudding user response：

The object you are trying to reference by this doesn't exist yet

Try just defining it first and not using this

const _renderIndex = async (req, res) => {
  console.dir("test");
}

module.exports = {
    _renderIndex,
    index: async (req, res) => {
      _renderIndex(req, res, {});
    }
 };

CodePudding user response：

render.js

const _renderIndex = async (req, res) => {
  console.dir("test");
}
const index=(){}
module.exports ={renderIndex:_renderIndex,index:index};

in another file

 import {renderIndex,index} from 'render.js'