CODEWITHSUNDEEP
javascriptreactjsnpmvisual-studio-code
ahsanejazzz
ahsanejazzz

Reputation: 73

TypeError: uuidv4 is not a function

I'm getting this TypeError in my code can someone plz help me there seems to be an issue in line 22 to 25. This code is related to printing a todo list. In this section of code I assign the name to lists. Also on visual studio code the files are compiling without any errors whereas when I start npm this error shows up in the browser.

'''

import React, { Component } from 'react';
import List from './List.js';
const uuidv4 = require('uuid');

class Lists extends Component {

  render() {
    // If there are no lists, display a relevant message
    if(this.props.lists.length === 0) {
      return (
        <div id="listsDiv" className="List">
          <h2>Add new lists to get started!</h2>
        </div>
      );
    }

    // Otherwise, for each list, create a div
    var items = this.props.items;
    var lists = this.props.lists;
    var addItem = this.props.addItem;
    return (
      <div key={uuidv4()}>
      {lists.map(function(listName) {
        return (
          <List name={listName} items={items[listName]} addItem={addItem.bind(this)} key={uuidv4()} />
        )
      })}
      </div>
    );
  }
}

export default Lists;

'''

Upvotes: 6

Views: 19514

Answers (2)

Dileep Reddy
Dileep Reddy

Reputation: 93

uuid has different options to generate id's like v1, v3, v4, etc. As you want to generate a v4 id. You can use it this way.

<div key={uuidv4.v4()}></div>

Note: I suggest you to import it as.It will be easy to understand.

const uuid = require('uuid')

Upvotes: 1

Viet
Viet

Reputation: 12787

You need to import v4 as uuidv4:

import { v4 as uuidv4 } from "uuid";

or

const { v4: uuidv4 } = require('uuid');

Upvotes: 15

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