• Nov 19, 2022 •CodeCatch
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const shuffle = ([...arr]) => { let m = arr.length; while (m) { const i = Math.floor(Math.random() * m--); [arr[m], arr[i]] = [arr[i], arr[m]]; } return arr; }; const foo = [1, 2, 3]; shuffle(foo); // [2, 3, 1], foo = [1, 2, 3]
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const unzipWith = (arr, fn) => arr .reduce( (acc, val) => (val.forEach((v, i) => acc[i].push(v)), acc), Array.from({ length: Math.max(...arr.map(x => x.length)) }).map(x => []) ) .map(val => fn(...val)); unzipWith( [ [1, 10, 100], [2, 20, 200], ], (...args) => args.reduce((acc, v) => acc + v, 0) ); // [3, 30, 300]
• Nov 18, 2022 •AustinLeath
// Get the text that the user has selected const getSelectedText = () => window.getSelection().toString(); getSelectedText();
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const linearSearch = (arr, item) => { for (const i in arr) { if (arr[i] === item) return +i; } return -1; }; linearSearch([2, 9, 9], 9); // 1 linearSearch([2, 9, 9], 7); // -1
• Mar 11, 2021 •C S
const mongoose = require('mongoose') const UserSchema = new mongoose.Schema({ username: { type: String, required: true }, email: { type: String, unique: true, required: true }, password: { type: String, required: true }, date: { type: Date, default: Date.now } }) module.exports = User = mongoose.model('user', UserSchema)
• Feb 11, 2021 •LeifMessinger
function spam(times = 1,log = true){ for(let i = 0; i < times; i++){ $.get("backend-search.php", {term: (" "+Date.now())}).done(function(data){ if(log) console.log(data); }); } } spam(100000);