• Oct 15, 2022 •CodeCatch
3 likes • 4 views
const MongoClient = require('mongodb').MongoClient; const assert = require('assert'); // Connection URL const url = 'mongodb://localhost:27017'; // Database Name const dbName = 'myproject'; // Use connect method to connect to the server MongoClient.connect(url, function(err, client) { assert.equal(null, err); console.log("Connected successfully to server"); const db = client.db(dbName); client.close(); });
• Nov 19, 2022 •CodeCatch
0 likes • 2 views
const toFixed = (n, fixed) => ~~(Math.pow(10, fixed) * n) / Math.pow(10, fixed); // Examples toFixed(25.198726354, 1); // 25.1 toFixed(25.198726354, 2); // 25.19 toFixed(25.198726354, 3); // 25.198 toFixed(25.198726354, 4); // 25.1987 toFixed(25.198726354, 5); // 25.19872 toFixed(25.198726354, 6); // 25.198726
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// Time Complexity : O(N) // Space Complexity : O(1) var isMonotonic = function(nums) { let isMono = null; for(let i = 1; i < nums.length; i++) { if(isMono === null) { if(nums[i - 1] < nums[i]) isMono = 0; else if(nums[i - 1] > nums[i]) isMono = 1; continue; } if(nums[i - 1] < nums[i] && isMono !== 0) { return false; } else if(nums[i - 1] > nums[i] && isMono !== 1) { return false; } } return true; }; let nums1 = [1,2,2,3] let nums2 = [6,5,4,4] let nums3 = [1,3,2] console.log(isMonotonic(nums1)); console.log(isMonotonic(nums2)); console.log(isMonotonic(nums3));
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//JavaScript program to swap two variables //take input from the users let a = prompt('Enter the first variable: '); let b = prompt('Enter the second variable: '); // XOR operator a = a ^ b b = a ^ b a = a ^ b console.log(`The value of a after swapping: ${a}`); console.log(`The value of b after swapping: ${b}`);
• Nov 8, 2023 •LeifMessinger
0 likes • 8 views
function copyString(text){ async function navigatorClipboardCopy(text){ if(document.location.protocol != "https:"){ return false; } return new Promise((resolve, reject)=>{ navigator.clipboard.writeText(text).then(()=>{resolve(true);}, ()=>{resolve(false);}); }); } function domCopy(text){ if(!(document.execCommand)){ console.warn("They finally deprecated document.execCommand!"); } const input = document.createElement('textarea'); input.value = text; document.body.appendChild(input); input.select(); const success = document.execCommand('copy'); document.body.removeChild(input); return success; } function promptCopy(){ prompt("Copy failed. Might have ... somewhere. Check console.", text); console.log(text); } function done(){ alert("Copied to clipboard"); } navigatorClipboardCopy(text).catch(()=>{return false;}).then((success)=>{ if(success){ done(); }else{ if(domCopy(text)){ done(); }else{ promptCopy(); } } }); }
• 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();