• Nov 19, 2022 •CodeCatch
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const copyToClipboard = str => { const el = document.createElement('textarea'); el.value = str; el.setAttribute('readonly', ''); el.style.position = 'absolute'; el.style.left = '-9999px'; document.body.appendChild(el); const selected = document.getSelection().rangeCount > 0 ? document.getSelection().getRangeAt(0) : false; el.select(); document.execCommand('copy'); document.body.removeChild(el); if (selected) { document.getSelection().removeAllRanges(); document.getSelection().addRange(selected); } }; copyToClipboard('Lorem ipsum'); // 'Lorem ipsum' copied to clipboard.
• Mar 22, 2022 •LeifMessinger
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//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"; } }
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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
• Nov 8, 2023 •LeifMessinger
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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(); } } }); }
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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 18, 2022 •AustinLeath
//use this with canvas file finder function NewTab(testing) { window.open(testing, "_blank"); } for(test in results) { var testing = 'https://unt.instructure.com/files/' + test + '/download'; NewTab(testing); }