• Nov 19, 2022 •CodeCatch
0 likes • 3 views
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
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const bucketSort = (arr, size = 5) => { const min = Math.min(...arr); const max = Math.max(...arr); const buckets = Array.from( { length: Math.floor((max - min) / size) + 1 }, () => [] ); arr.forEach(val => { buckets[Math.floor((val - min) / size)].push(val); }); return buckets.reduce((acc, b) => [...acc, ...b.sort((a, b) => a - b)], []); }; bucketSort([6, 3, 4, 1]); // [1, 3, 4, 6]
• Apr 26, 2025 •hasnaoui1
0 likes • 2 views
console.log("xa")
const powerset = arr => arr.reduce((a, v) => a.concat(a.map(r => r.concat(v))), [[]]); powerset([1, 2]); // [[], [1], [2], [1, 2]]
arr = [] // empty array const isEmpty = arr => !Array.isArray(arr) || arr.length === 0; // Examples isEmpty([]); // true isEmpty([1, 2, 3]); // false
• May 17, 2021 •LeifMessinger
//Upvotes comments according to a regex pattern. I tried it out on https://www.reddit.com/r/VALORANT/comments/ne74n4/please_admire_this_clip_precise_gunplay_btw/ //Known bugs: //If a comment was already upvoted, it gets downvoted //For some reason, it has around a 50-70% success rate. The case insensitive bit works, but I think some of the query selector stuff gets changed. Still, 50% is good let comments = document.getElementsByClassName("_3tw__eCCe7j-epNCKGXUKk"); //Comment class let commentsToUpvote = []; const regexToMatch = /wtf/gi; for(let comment of comments){ let text = comment.querySelector("._1qeIAgB0cPwnLhDF9XSiJM"); //Comment content class if(text == undefined){ continue; } text = text.textContent; if(regexToMatch.test(text)){ console.log(text); commentsToUpvote.push(comment); } } function upvote(comment){ console.log(comment.querySelector(".icon-upvote")); //Just showing you what it's doing comment.querySelector(".icon-upvote").click(); } function slowRecurse(){ let comment = commentsToUpvote.pop(); //It's gonna go bottom to top but whatever if(comment != undefined){ upvote(comment); setTimeout(slowRecurse,500); } } slowRecurse();