chinhvo

#include <winsock2.h>
#include <iostream>

struct CLIENT_INFO {
    SOCKET hClientSocket;
    struct sockaddr_in clientAddr;
};

char szServerIPAddr[] = "192.168.1.4";     // Put here the IP address of the server
int nServerPort = 5050;                    // The server port that will be used by

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const BlobToBase64 = function(blob){
    let blobUrl = URL.createObjectURL(blob);

    return new Promise((resolve, reject) => {
                let img = new Image();
                img.onload = () => resolve(img);
                img.onerror = err => reject(err);
                img.src = blobUrl;
            }).then(img => {
                URL.revokeObjectURL(blobUrl);

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/**
 * Convert a Readable Stream to base64 string
 * @param {ReadableStream} stream - a readable stream to convert in base64 string
 * @returns {Promise} - Promise that resolve in a string containing the base64
 */
const streamToBase64 = (stream) => {
  const concat = require('concat-stream')
  const { Base64Encode } = require('base64-stream')

  return new Promise((resolve, reject) => {

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import fs from 'fs';
import path from 'path';

const convert = (imgPath) => {
    // read image file
    fs.readFile(imgPath, (err, data)=>{
        // error handle
        if(err) {
            throw err;
        }

chinhvo

import axios from 'axios';
import {toCamelCase, toSnakeCase} from '../util';
import qs from 'qs';

// You can intercept requests or responses before they are handled by then or catch.
// https://github.com/axios/axios#interceptors

// Add a response interceptor and camelCase return data (for JS)
axios.interceptors.response.use((response) => {
    response.data = toCamelCase(response.data);

chinhvo

function removeVietnameseTones(str) {
    str = str.replace(/à|á|ạ|ả|ã|â|ầ|ấ|ậ|ẩ|ẫ|ă|ằ|ắ|ặ|ẳ|ẵ/g,"a"); 
    str = str.replace(/è|é|ẹ|ẻ|ẽ|ê|ề|ế|ệ|ể|ễ/g,"e"); 
    str = str.replace(/ì|í|ị|ỉ|ĩ/g,"i"); 
    str = str.replace(/ò|ó|ọ|ỏ|õ|ô|ồ|ố|ộ|ổ|ỗ|ơ|ờ|ớ|ợ|ở|ỡ/g,"o"); 
    str = str.replace(/ù|ú|ụ|ủ|ũ|ư|ừ|ứ|ự|ử|ữ/g,"u"); 
    str = str.replace(/ỳ|ý|ỵ|ỷ|ỹ/g,"y"); 
    str = str.replace(/đ/g,"d");
    str = str.replace(/À|Á|Ạ|Ả|Ã|Â|Ầ|Ấ|Ậ|Ẩ|Ẫ|Ă|Ằ|Ắ|Ặ|Ẳ|Ẵ/g, "A");
    str = str.replace(/È|É|Ẹ|Ẻ|Ẽ|Ê|Ề|Ế|Ệ|Ể|Ễ/g, "E");

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// check version
node -v || node --version

// list locally installed versions of node
nvm ls

// list remove available versions of node
nvm ls-remote

// install specific version of node

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<script>
// Register the service worker
if ('serviceWorker' in navigator) {
	navigator.serviceWorker.register('/service-worker.js').then(function(registration) {
    // Registration was successful
    console.log('ServiceWorker registration successful with scope: ', registration.scope);
}).catch(function(err) {
    // registration failed :(
    	console.log('ServiceWorker registration failed: ', err);
    });

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import _ from 'lodash';

/*
 *  Description:
 *  Add `.parent` property (with reference to parent object)
 *  to each array item recursively.
 *
 *  INPUT:
 *
 *  parents []

chinhvo

#### without path

##### create table
```sql
CREATE TABLE _test(id SERIAL PRIMARY KEY, item_id INT NOT NULL, parent_id INT);
INSERT INTO _test(item_id, parent_id) VALUES (1, null), (2, 1), (3, 1), (3, 5), (4, 3), (5, 5);
```

##### get children recursively
```sql