• Nov 19, 2022 •CodeCatch
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const getURLParameters = url => (url.match(/([^?=&]+)(=([^&]*))/g) || []).reduce( (a, v) => ( (a[v.slice(0, v.indexOf('='))] = v.slice(v.indexOf('=') + 1)), a ), {} );
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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: '); //using destructuring assignment [a, b] = [b, a]; console.log(`The value of a after swapping: ${a}`); console.log(`The value of b after swapping: ${b}`);
• Nov 16, 2023 •LeifMessinger
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function filePath(file){ let folders = file.getParents(); const parents = []; function makePathString(folderArray){ let path = ""; folderArray.forEach((folder)=>{ path += "/" + folder.getName(); }); return path; } while (folders.hasNext()) { const folder = folders.next(); //This should hopefully remove that folder from the iterator parents.unshift(folder); } return makePathString(parents); } function myFunction() { const myEmail = Session.getEffectiveUser().getEmail(); Logger.log("My email is " + myEmail); // Log the name of every file in the user's Drive. var fileIterator = DriveApp.getFiles(); const files = []; //List of [File, size] entries const filesMaxSize = 10; while (fileIterator.hasNext()) { var file = fileIterator.next(); const owner = file.getOwner(); //Only files I own if((!(owner)) || (!(owner.getEmail)) || owner.getEmail() != myEmail){ continue; } const entry = [file, file.getSize()]; function slideUp(arr, index){ //Let's keep sliding it up so we don't have to sort it at the end. for(let i = index; i > 0; --i){ //Stops at 1 const nextFile = arr[i-1]; if(nextFile[1] > entry[1]){ break; }else{ //Swap with the next file to slide the file up const temp = arr[i]; arr[i] = arr[i - 1]; arr[i - 1] = temp; } } } if(files.length < filesMaxSize){ files.push(entry); slideUp(files, files.length - 1); }else{ if(entry[1] > files[files.length - 1][1]){ //If it's bigger than the smallest file in the list. files[files.length - 1] = entry; //Replace the smallest file slideUp(files, files.length - 1); //Slide it up } } } for(let i = 0; i < filesMaxSize; ++i){ const file = files[i][0]; const size = files[i][1]; Logger.log(size + "\t" + filePath(file) + "/" + file.getName() + "\t" + file.getOwner().getName()); } }
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const head = arr => (arr && arr.length ? arr[0] : undefined); head([1, 2, 3]); // 1 head([]); // undefined head(null); // undefined head(undefined); // undefined
• Mar 22, 2022 •LeifMessinger
//QM Helper by Leif Messinger //Groups numbers by number of bits and shows their binary representations. //To be used on x.com const minterms = prompt("Enter your minterms separated by commas").split(",").map(x => parseInt(x.trim())); const maxNumBits = minterms.reduce(function(a, b) { return Math.max(a, Math.log2(b)); }); const bitGroups = []; for(let i = 0; i < maxNumBits; ++i){ bitGroups.push([]); } for(const minterm of minterms){ let outputString = (minterm+" "); //Count the bits let count = 0; for (var i = maxNumBits; i >= 0; --i) { if((minterm >> i) & 1){ ++count; outputString += "1"; }else{ outputString += "0"; } } bitGroups[count].push(outputString); } document.body.textContent = ""; document.body.style.setProperty("white-space", "pre"); for(const group of bitGroups){ for(const outputString of group){ document.body.textContent += outputString + "\r\n"; } }
// `arr` is an array const clone = arr => arr.slice(0); // Or const clone = arr => [...arr]; // Or const clone = arr => Array.from(arr); // Or const clone = arr => arr.map(x => x); // Or const clone = arr => JSON.parse(JSON.stringify(arr)); // Or const clone = arr => arr.concat([]);