• Mar 11, 2021 •C S
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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
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const formatDuration = ms => { if (ms < 0) ms = -ms; const time = { day: Math.floor(ms / 86400000), hour: Math.floor(ms / 3600000) % 24, minute: Math.floor(ms / 60000) % 60, second: Math.floor(ms / 1000) % 60, millisecond: Math.floor(ms) % 1000 }; return Object.entries(time) .filter(val => val[1] !== 0) .map(([key, val]) => `${val} ${key}${val !== 1 ? 's' : ''}`) .join(', '); }; formatDuration(1001); // '1 second, 1 millisecond' formatDuration(34325055574); // '397 days, 6 hours, 44 minutes, 15 seconds, 574 milliseconds'
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 flat = arr => [].concat.apply([], arr.map(a => Array.isArray(a) ? flat(a) : a)); // Or const flat = arr => arr.reduce((a, b) => Array.isArray(b) ? [...a, ...flat(b)] : [...a, b], []); // Or // See the browser compatibility at https://caniuse.com/#feat=array-flat const flat = arr => arr.flat(); // Example flat(['cat', ['lion', 'tiger']]); // ['cat', 'lion', 'tiger']
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// There are n rings and each ring is either red, green, or blue. The rings are distributed across ten rods labeled from 0 to 9. // You are given a string rings of length 2n that describes the n rings that are placed onto the rods. Every two characters in rings forms a color-position pair that is used to describe each ring where: // The first character of the ith pair denotes the ith ring's color ('R', 'G', 'B'). // The second character of the ith pair denotes the rod that the ith ring is placed on ('0' to '9'). // For example, "R3G2B1" describes n == 3 rings: a red ring placed onto the rod labeled 3, a green ring placed onto the rod labeled 2, and a blue ring placed onto the rod labeled 1. // Return the number of rods that have all three colors of rings on them. let rings = "B0B6G0R6R0R6G9"; var countPoints = function(rings) { let sum = 0; // Always 10 Rods for (let i = 0; i < 10; i++) { if (rings.includes(`B${i}`) && rings.includes(`G${i}`) && rings.includes(`R${i}`)) { sum+=1; } } return sum; }; console.log(countPoints(rings));
function Welcome(props) { return <h1>Hello, {props.name}</h1>; } function App() { return ( <div> <Welcome name="Sara" /> <Welcome name="Cahal" /> <Welcome name="Edite" /> </div> ); } ReactDOM.render( <App />, document.getElementById('root') );