• Nov 19, 2022 •CodeCatch
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const euclideanDistance = (a, b) => Math.hypot(...Object.keys(a).map(k => b[k] - a[k])); euclideanDistance([1, 1], [2, 3]); // ~2.2361 euclideanDistance([1, 1, 1], [2, 3, 2]); // ~2.4495
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arr = [] // empty array const isEmpty = arr => !Array.isArray(arr) || arr.length === 0; // Examples isEmpty([]); // true isEmpty([1, 2, 3]); // false
• Nov 18, 2022 •AustinLeath
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// Or const randomColor = () => `#${(~~(Math.random()*(1<<24))).toString(16)}`; console.log(randomColor);
const primes = num => { let arr = Array.from({ length: num - 1 }).map((x, i) => i + 2), sqroot = Math.floor(Math.sqrt(num)), numsTillSqroot = Array.from({ length: sqroot - 1 }).map((x, i) => i + 2); numsTillSqroot.forEach(x => (arr = arr.filter(y => y % x !== 0 || y === x))); return arr; }; primes(10); // [2, 3, 5, 7]
• Mar 10, 2022 •LeifMessinger
//Use at https://mee6.xyz/leaderboard/732262089447702588 //Higher the spammy stat, the more spammy that person is. //This is because mee doesn't give experience to people who post more comments in a minute. function statBlock(title, value){ let elm = document.createElement("div"); elm.className = "leaderboardPlayerStatBlock"; let titleElm = document.createElement("div"); titleElm.className = "leaderboardPlayerStatName"; titleElm.textContent = title; let valueElm = document.createElement("div"); valueElm.className = "leaderboardPlayerStatValue"; valueElm.textContent = value; elm.appendChild(titleElm); elm.appendChild(valueElm); elm.remove = function(){ this.parentElement.removeChild(this); } return elm; } for(let player of Array.from(document.getElementsByClassName("leaderboardPlayer"))){ if(player.spamminess) player.spamminess.remove(); let messages = null; let experience = null; const statBlockArray = Array.from(player.querySelectorAll(".leaderboardPlayerStatBlock")); for(let statBlock of statBlockArray){ const statName = statBlock.querySelector(".leaderboardPlayerStatName").textContent; const text = statBlock.querySelector(".leaderboardPlayerStatValue").textContent; const number = ((text.includes("k"))? (text.replace("k","") * 1000.0) : +(text)); if(statName.includes("MESSAGES")){ messages = number; }else if(statName.includes("EXPERIENCE")){ experience = number; } } const stats = player.querySelector(".leaderboardPlayerStats"); const messagesElement = stats.firstChild; const spamminess = ((messages/experience)*2000.0).toFixed(2); player.spamminess = stats.insertBefore(statBlock("SPAMMINESS", spamminess), messagesElement); }
const levenshteinDistance = (s, t) => { if (!s.length) return t.length; if (!t.length) return s.length; const arr = []; for (let i = 0; i <= t.length; i++) { arr[i] = [i]; for (let j = 1; j <= s.length; j++) { arr[i][j] = i === 0 ? j : Math.min( arr[i - 1][j] + 1, arr[i][j - 1] + 1, arr[i - 1][j - 1] + (s[j - 1] === t[i - 1] ? 0 : 1) ); } } return arr[t.length][s.length]; }; levenshteinDistance('duck', 'dark'); // 2