URL Search Term Generator
0 likes • Jan 17, 2021
JavaScript
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// `date` is a `Date` objectconst formatYmd = date => date.toISOString().slice(0, 10);// ExampleformatYmd(new Date()); // 2020-05-06
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]
// Generate a random HEX colorrandomColor = () => `#${Math.random().toString(16).slice(2, 8).padStart(6, '0')}`;// Orconst randomColor = () => `#${(~~(Math.random()*(1<<24))).toString(16)}`;
const binomialCoefficient = (n, k) => {if (Number.isNaN(n) || Number.isNaN(k)) return NaN;if (k < 0 || k > n) return 0;if (k === 0 || k === n) return 1;if (k === 1 || k === n - 1) return n;if (n - k < k) k = n - k;let res = n;for (let j = 2; j <= k; j++) res *= (n - j + 1) / j;return Math.round(res);};binomialCoefficient(8, 2); // 28
new StringBuilder(hi).reverse().toString()
const celsiusToFahrenheit = (celsius) => celsius * 9/5 + 32;const fahrenheitToCelsius = (fahrenheit) => (fahrenheit - 32) * 5/9;// ExamplescelsiusToFahrenheit(15); // 59celsiusToFahrenheit(0); // 32celsiusToFahrenheit(-20); // -4fahrenheitToCelsius(59); // 15fahrenheitToCelsius(32); // 0