const WebSocket = require(`ws`);
const wss = new WebSocket(`ws://localhost:3000`);

wss.onmessage = function (e) {
  console.log("I'm client")
  let message = JSON.parse(e.data);
  console.log(message);
};


const WebSocket = require(`ws`);
const ws = new WebSocket.Server({ port: 3000 });

ws.on("connection", (ws) => {
  console.log("I'm server")
  let msg = "Connection Established!. M2C!";
  ws.send(JSON.stringify(msg));
});


import React from 'react';
import { shallow, configure } from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';

configure({ adapter: new Adapter() });

import HelloWorld from './app';

var TestResult = function() {
    this.succeeded = false;
    this.reason = "";
    this.input = "";
    this.expected_output = "";
    this.actual_output = "";
}

export const executeTests = function() {

  var results = [];

  result = new TestResult();
  result.input = 'HelloWorld Component';
  result.expected_output = "span containing text 'Hello World'"

  let wrapper = shallow(<HelloWorld />);

  // Call your Challenge function here.

  let type = wrapper.type();
  let testSuccessful = true;
  let failureReason;

  if (type !== 'span') {
    testSuccessful = false;
    failureReason = "You need to render exactly one span HTML element";
  } else if (wrapper.props().children != "Hello World") {
     testSuccessful = false;
     failureReason = "You have rendered wrong message in your span element";
  }

  result.actual_output = wrapper.html();

  if (testSuccessful) {
    result.succeeded = true;
    result.reason = "Succeeded"
  } else {
    result.succeeded = false;
    result.reason = failureReason;
  }

  results.push(result);

  return results;
}


Tempory Test

React

Dart

GoJS React

Typescript React

Vue.js

ed2.tar.gz

How to use WebSockets in JavaScript

WebSocket protocol enables persistent bidirectional data communication between server and client using HTTP/HTTPS, with ws package aiding implementation in JavaScript.

How to use WebSockets in JavaScript

Installing `ws` using npm

Import/require WebSocket

Using 'import'

Using 'require'

Simple server-client example

Explanation of server.js

Explanation of client.js

How to use WebSockets in JavaScript

Installing ws using npm

Import/require WebSocket

Using 'import'

Using 'require'

Simple server-client example

Explanation of server.js

Explanation of client.js

Installing `ws` using npm