• Oct 15, 2022 •CodeCatch
3 likes • 5 views
const MongoClient = require('mongodb').MongoClient; const assert = require('assert'); // Connection URL const url = 'mongodb://localhost:27017'; // Database Name const dbName = 'myproject'; // Use connect method to connect to the server MongoClient.connect(url, function(err, client) { assert.equal(null, err); console.log("Connected successfully to server"); const db = client.db(dbName); client.close(); });
• Nov 19, 2022 •CodeCatch
0 likes • 3 views
const toFixed = (n, fixed) => ~~(Math.pow(10, fixed) * n) / Math.pow(10, fixed); // Examples toFixed(25.198726354, 1); // 25.1 toFixed(25.198726354, 2); // 25.19 toFixed(25.198726354, 3); // 25.198 toFixed(25.198726354, 4); // 25.1987 toFixed(25.198726354, 5); // 25.19872 toFixed(25.198726354, 6); // 25.198726
• Mar 22, 2022 •LeifMessinger
//QM Helper by Leif Messinger //Groups numbers by number of bits and shows their binary representations. //To be used on x.com const minterms = prompt("Enter your minterms separated by commas").split(",").map(x => parseInt(x.trim())); const maxNumBits = minterms.reduce(function(a, b) { return Math.max(a, Math.log2(b)); }); const bitGroups = []; for(let i = 0; i < maxNumBits; ++i){ bitGroups.push([]); } for(const minterm of minterms){ let outputString = (minterm+" "); //Count the bits let count = 0; for (var i = maxNumBits; i >= 0; --i) { if((minterm >> i) & 1){ ++count; outputString += "1"; }else{ outputString += "0"; } } bitGroups[count].push(outputString); } document.body.textContent = ""; document.body.style.setProperty("white-space", "pre"); for(const group of bitGroups){ for(const outputString of group){ document.body.textContent += outputString + "\r\n"; } }
• Mar 11, 2021 •C S
1 like • 3 views
if (process.env.NODE_ENV === "production") { app.use(express.static("client/build")); app.get("*", (req, res) => { res.sendFile(path.resolve(__dirname, "client", "build", "index.html")); }); }
• Aug 30, 2024 •C S
1 like • 19 views
# Acronyms ## Computer Numerical Control (CNC) - Typicalldfdfsdffdafdasgfdgfgfdfdafdasfdafda
• Feb 3, 2021 •C S
0 likes • 2 views
import React, { useState } from 'react' import Welcome from '../components/Welcome' function About() { const [showWelcome, setShowWelcome] = useState(false) return ( <div> {showWelcome ? <Welcome /> : null} </div> <div> {showWelcome && <Welcome /> } </div> ) } export default App