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Javascript 2021-08-28 06:44:02
node cluster
const cluster = require('cluster'); const http = require('http'); const numCPUs = require('os').cpus().length; if (cluster.isMaster) { console.log(`Master ${process.pid} is running`); // Fork workers. for (let i = 0; i < numCPUs; i++) { clu... Add solution -
Javascript 2021-08-28 06:04:02
remove 0 from 01
const numString = "065"; //parseInt with radix=10 let number = parseInt(numString, 10); console.log(number); // Number constructor number = Number(numString); console.log(number); // unary plus operator number = +numString; console.log(number... Add solution -
Javascript 2021-08-28 05:47:02
react pass prop to parent
//Form (Parent) import React, { useState, Component } from 'react'; import Input from '../../shared/input-box/InputBox' const Form = function (props) { const [value, setValue] = useState(''); const onchange = (data) => { setValue(dat... Add solution -
Javascript 2021-08-28 04:54:01
event emmiter in node js stackoverflow
const events = require('events'); const eventEmitter = new events.EventEmitter(); eventEmitter.on('scream', function() { console.log("Screaming"); }); eventEmitter.on('scream', function(name) { console.log(name+" is screaming&qu... Add solution -
Javascript 2021-08-28 04:35:02
How to download canvas image into database
//ajax;;;;;;;;;; save.click((e)=>{ var data = canvas.toDataURL('image/png'); $.post('save.php',{'img':data},function(e){ console.log(e); }) }) //php <?php $data = $_POST['img']; $file = "data/file.png"; // where you wan... Add solution -
Javascript 2021-08-28 04:29:02
javascript compare duplicates in array
let strArray = [ "q", "w", "w", "w", "e", "i", "u", "r"]; let findDuplicates = arr => arr.filter((item, index) => arr.indexOf(item) != index) console.log(findDuplicates... Add solution
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