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import { File } from "@ionic-native/file/ngx";
import { FileTransfer } from "@ionic-native/file-transfer/ngx";
import { FileOpener } from "@ionic-native/file-opener/ngx";
import { Injectable } from "@angular/core";

@Injectable({
  providedIn: "root"
})
export class PdfViewerService {
  fileTransfer: FileTransferObject;

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<ion-header>
  <ion-toolbar>
    <ion-title>
      Ionic Blank
    </ion-title>
  </ion-toolbar>
</ion-header>

<ion-content>
  <div class="ion-padding">

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componentDidMount() {
		this.socket = new WebSocket(ConfigData.url);
		this.socket.onmessage = event => {
			let Data = JSON.parse(event.data);
			Data.forEach(([name, price]) => {
				...
			});
		};
	}

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Data.forEach(([name, price]) => {
				this.setState(prevstate => ({
					data: {
						...prevstate.data,
						[name]: 
					}
				}));
    });

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render() {
    const { data } = this.state;
    return (
      <div className="App">
        <h2>Hello world</h2>
        {Object.keys(data).map((key, index) => (
          <div key={index}>
            <div>{key}</div>
            <div>{data[key]}</div>

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const path = require("path");

module.exports = [
  {
    entry: {
      client: "./src/client/index.js"
    },
    output: {
      path: path.resolve(__dirname, "dist"),
      filename: "[name].js"

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import express from 'express';
const app = express()
const port = 3000

app.get('/', (req, res) => res.send('Hello World!'))

app.listen(port, () => console.log(`Example app listening on port ${port}!`))

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"scripts": {
		"start": "npm-run-all --parallel watch:build watch:server",
		"watch:build": "webpack --watch",
		"watch:server": "nodemon \"./server.js\" --watch \"./ \""
	},

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import React, { Component, Fragment } from "react";


export default class App extends Component {
  render() {
    return (
      <Fragment>
        <div>Hello World</div>
      </Fragment>
    );

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import React from "react";
import { hydrate } from "react-dom";

hydrate(
	<div>Hello World</div>,
	document.getElementById("app")
);