How to print array of object in react

Question

I have below code for which

import React, { Component } from 'react'; import factory from '../ethereum/factory';

import ads_list from './ads_list'

class showAds extends Component {
  static async getInitialProps(){
    let i;
    let a = [];
    const ad=await factory.methods.getAdress().call();
    const unique_address = Array.from(new Set(ad));
    for ( i = 0 ;i < unique_address.length;i++){
       a[i] = await factory.methods.getClientData(unique_address[i]).call();
    }
   console.log(a);
   return {a};
 }

 render(){
    return <div>
             <p>{}</p>
          </div>;
    }
 }

 export default showAds;

for the above code I am getting below values in console.

   [ 
      {
        '0': 'www.google.com', 
        '1': 'Click here and enjoy searching', 
        '2': '17' 
      },
      { 
        '0': 'www.gmail.com', 
        '1': 'PLease login here', 
        '2': '2' 
      } 
      { 
       '0': 'www.google.com',
       '1': 'Click here and enjoy searching',
       '2': '17' 
      },
      { 
       '0': 'www.gmail.com',
       '1': 'PLease login here', 
       '2': '2' 
      } 
    ]

The problem I am facing is to print these values in front-end.

Can you provide correct data as array you mention is not valid — Revansiddh
– Revansiddh, Commented Apr 19, 2018 at 10:47
You can use this simple react component data => <pre>{JSON.stringify(data, null, 2)}</pre> developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… — Håken Lid
– Håken Lid, Commented Apr 19, 2018 at 10:48
is your data similar to this object and array of it "Result" : [ {'0': 'www.google.com'}, {'1': 'Click here and enjoy searching'}, {'2': '17'} ] — Revansiddh
– Revansiddh, Commented Apr 19, 2018 at 10:51
OP, what have you tried? What specific troubles are you having in showing the data? This question almost sounds like you're asking how to use React — kingdaro
– kingdaro, Commented Apr 19, 2018 at 10:54

Colin Burke · Accepted Answer · 2018-04-19 10:57:57Z

24

Using a simpler data as an example, you can render an unordered list like so:

class App extends React.Component {
  render() {
    const data = [
      {
        "0": "www.google.com",
        "1": "Click here and enjoy searching",
        "2": "17"
      },
    ];

    return (
      <ul>
        {data.map(item => {
          return <li>{item[0]}</li>;
        })}
      </ul>
    );
  }
}

CodeSandbox example here: https://codesandbox.io/s/j3y3q9pwr3

answered Apr 19, 2018 at 10:57

Colin Burke

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Comments

TylerH · Accepted Answer · 2019-08-05 16:47:56Z

3

JSON.stringify(["a", { b: "c" }])

See a demo.

edited Aug 5, 2019 at 16:47

TylerH

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answered Aug 5, 2019 at 16:45

Marcos de Melo

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