• May 17, 2021 •LeifMessinger
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//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();
• Feb 6, 2021 •LeifMessinger
class SequentialQueue{ //if you want it to go backwards, too bad next(){ return this.i++; } constructor(start = 0){ this.i = start; } } const que = new SequentialQueue(0); for(let i = 0; i < 10; i++){ console.log(que.next()); }
• Nov 19, 2022 •CodeCatch
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const heapsort = arr => { const a = [...arr]; let l = a.length; const heapify = (a, i) => { const left = 2 * i + 1; const right = 2 * i + 2; let max = i; if (left < l && a[left] > a[max]) max = left; if (right < l && a[right] > a[max]) max = right; if (max !== i) { [a[max], a[i]] = [a[i], a[max]]; heapify(a, max); } }; for (let i = Math.floor(l / 2); i >= 0; i -= 1) heapify(a, i); for (i = a.length - 1; i > 0; i--) { [a[0], a[i]] = [a[i], a[0]]; l--; heapify(a, 0); } return a; }; heapsort([6, 3, 4, 1]); // [1, 3, 4, 6]
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const reverse = str => str.split('').reverse().join(''); reverse('hello world'); // Result: 'dlrow olleh'
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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
• Jan 26, 2023 •AustinLeath
0 likes • 6 views
function printHeap(heap, index, level) { if (index >= heap.length) { return; } console.log(" ".repeat(level) + heap[index]); printHeap(heap, 2 * index + 1, level + 1); printHeap(heap, 2 * index + 2, level + 1); } //You can call this function by passing in the heap array and the index of the root node, which is typically 0, and level = 0. let heap = [3, 8, 7, 15, 17, 30, 35, 2, 4, 5, 9]; printHeap(heap,0,0)