• Mar 11, 2021 •C S
0 likes • 6 views
router.post("/", async (req, res) => { const { email, password } = req.body; try { if (!email) return res.status(400).json({ msg: "An email is required" }); if (!password) return res.status(400).json({ msg: "A password is required" }); const user = await User.findOne({ email }).select("_id password"); if (!user) return res.status(400).json({ msg: "Invalid credentials" }); const match = await bcrypt.compare(password, user.password); if (!match) return res.status(400).json({ msg: "Invalid credentials" }); const accessToken = genAccessToken({ id: user._id }); const refreshToken = genRefreshToken({ id: user._id }); res.cookie("token", refreshToken, { expires: new Date(Date.now() + 604800), httpOnly: true, }); res.json({ accessToken }); } catch (err) { console.log(err.message); res.status(500).json({ msg: "Error logging in user" }); } });
• Nov 19, 2022 •CodeCatch
1 like • 1 view
class DoublyLinkedList { constructor() { this.nodes = []; } get size() { return this.nodes.length; } get head() { return this.size ? this.nodes[0] : null; } get tail() { return this.size ? this.nodes[this.size - 1] : null; } insertAt(index, value) { const previousNode = this.nodes[index - 1] || null; const nextNode = this.nodes[index] || null; const node = { value, next: nextNode, previous: previousNode }; if (previousNode) previousNode.next = node; if (nextNode) nextNode.previous = node; this.nodes.splice(index, 0, node); } insertFirst(value) { this.insertAt(0, value); } insertLast(value) { this.insertAt(this.size, value); } getAt(index) { return this.nodes[index]; } removeAt(index) { const previousNode = this.nodes[index - 1] || null; const nextNode = this.nodes[index + 1] || null; if (previousNode) previousNode.next = nextNode; if (nextNode) nextNode.previous = previousNode; return this.nodes.splice(index, 1); } clear() { this.nodes = []; } reverse() { this.nodes = this.nodes.reduce((acc, { value }) => { const nextNode = acc[0] || null; const node = { value, next: nextNode, previous: null }; if (nextNode) nextNode.previous = node; return [node, ...acc]; }, []); } *[Symbol.iterator]() { yield* this.nodes; } } const list = new DoublyLinkedList(); list.insertFirst(1); list.insertFirst(2); list.insertFirst(3); list.insertLast(4); list.insertAt(3, 5); list.size; // 5 list.head.value; // 3 list.head.next.value; // 2 list.tail.value; // 4 list.tail.previous.value; // 5 [...list.map(e => e.value)]; // [3, 2, 1, 5, 4] list.removeAt(1); // 2 list.getAt(1).value; // 1 list.head.next.value; // 1 [...list.map(e => e.value)]; // [3, 1, 5, 4] list.reverse(); [...list.map(e => e.value)]; // [4, 5, 1, 3] list.clear(); list.size; // 0
0 likes • 1 view
const permutations = arr => { if (arr.length <= 2) return arr.length === 2 ? [arr, [arr[1], arr[0]]] : arr; return arr.reduce( (acc, item, i) => acc.concat( permutations([...arr.slice(0, i), ...arr.slice(i + 1)]).map(val => [ item, ...val, ]) ), [] ); }; permutations([1, 33, 5]); // [ [1, 33, 5], [1, 5, 33], [33, 1, 5], [33, 5, 1], [5, 1, 33], [5, 33, 1] ]
• Apr 14, 2023 •Helper
0 likes • 9 views
const quickSort = arr => { const a = [...arr]; if (a.length < 2) return a; const pivotIndex = Math.floor(arr.length / 2); const pivot = a[pivotIndex]; const [lo, hi] = a.reduce( (acc, val, i) => { if (val < pivot || (val === pivot && i != pivotIndex)) { acc[0].push(val); } else if (val > pivot) { acc[1].push(val); } return acc; }, [[], []] ); return [...quickSort(lo), pivot, ...quickSort(hi)]; }; console.log(quickSort([1, 6, 1, 5, 3, 2, 1, 4])) // [1, 1, 1, 2, 3, 4, 5, 6]
• Oct 9, 2023 •Helper
0 likes • 290 views
import React, { useState, useEffect } from 'react'; import Link from 'next/link'; export default function CookieBanner() { // Initialize with a default value (false if not previously set in localStorage) const [cookieConsent, setCookieConsent] = useState(() => localStorage.getItem('cookieConsent') === 'true' ? true : false ); useEffect(() => { const newCookieConsent = cookieConsent ? 'granted' : 'denied'; window.gtag('consent', 'update', { analytics_storage: newCookieConsent }); localStorage.setItem('cookieConsent', String(cookieConsent)); }, [cookieConsent]); return !cookieConsent && ( <div> <div> <p> We use cookies to enhance the user experience.{' '} <Link href='/privacy/'>View privacy policy</Link> </p> </div> <div> <button type="button" onClick={() => setCookieConsent(false)}>Decline</button> <button type="button" onClick={() => setCookieConsent(true)}>Allow</button> </div> </div> ) }
• Nov 18, 2022 •AustinLeath
0 likes • 2 views
var d = new Date(); var d = new Date(milliseconds); var d = new Date(dateString); var d = new Date(year, month, day, hours, minutes, seconds, milliseconds);