Printing an heap memorized as an array level by level in javascript
• Jan 26, 2023 •AustinLeath
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function sortNumbers(arr) {return arr.slice().sort((a, b) => a - b);}const unsortedArray = [4, 1, 9, 6, 3, 5];const sortedArray = sortNumbers(unsortedArray);console.log("Unsorted Numbers:", unsortedArray);console.log("\n");console.log("Sorted Numbers:", sortedArray);
//Allegedly never tested on the twitter websitefunction scrapeScreen(){let articles = Array.from(document.getElementsByTagName("article"));let results = [];for(let tweet of articles){const isAnAd = Array.from(tweet.querySelectorAll("span")).map((e)=>e.textContent).includes("Ad");if(isAnAd){//console.log(tweet, "is an ad. Skipping...");continue;}const userName = tweet.querySelector("[data-testid='User-Name'] > div:nth-child(2) > div > div")?.textContent;const tweetContent = tweet.querySelector("[data-testid='tweetText']")?.textContent;const timeStamp = tweet.querySelector("time")?.getAttribute("datetime");const tweetLink = tweet.querySelector("time")?.parentElement?.getAttribute("href");if((!userName) || (!tweetContent)) continue;results.push({username: userName,tweetText: tweetContent,timeStamp: timeStamp,tweetLink: tweetLink});}return results;}let scraped = scrapeScreen();setInterval(()=>{scraped = scraped.concat(scrapeScreen().filter((tweet)=>{for(let scrapedTweet of scraped){if(scrapedTweet.username == tweet.username && scrapedTweet.tweetText == tweet.tweetText) return false;}return true;}));}, 500); //Scrape everything on the screen twice a secondwindow.scrollIntervalId = setInterval(function(){window.scrollBy(0, 1000);}, 500); //Scroll for me//http://bgrins.github.io/devtools-snippets/#console-save(function(console){console.save = function(data, filename){if(!data) {console.error('Console.save: No data')return;}if(!filename) filename = 'console.json'if(typeof data === "object"){data = JSON.stringify(data, undefined, '\t')}var blob = new Blob([data], {type: 'text/json'}),e = document.createEvent('MouseEvents'),a = document.createElement('a')a.download = filenamea.href = window.URL.createObjectURL(blob)a.dataset.downloadurl = ['text/json', a.download, a.href].join(':')e.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null)a.dispatchEvent(e)}})(console)setTimeout(()=>{clearTimeout(window.scrollIntervalId);delete window.scrollIntervalId;console.save(scraped, "TwitterScrape" + Date.now() + ".json");}, 60 * 1000 * 20); //Twenty minutes
export const Main = () => {const [title, setTitle] = useState('');return (<ChildComponenttitle={title}onChange={e => setTitle(e.target.value)}/>);};export const ChildComponent = ({ title, onChange }) => {return (<Box component="form" onSubmit={() => {}} noValidate mt={5}><TextFieldfullWidthid="title"label="Title"name="title"autoComplete="title"autoFocuscolor="primary"variant="filled"InputLabelProps={{ shrink: true }}value={title}onChange={onChange}/></Box>);};
const shuffle = ([...arr]) => {let m = arr.length;while (m) {const i = Math.floor(Math.random() * m--);[arr[m], arr[i]] = [arr[i], arr[m]];}return arr;};const foo = [1, 2, 3];shuffle(foo); // [2, 3, 1], foo = [1, 2, 3]
const celsiusToFahrenheit = (celsius) => celsius * 9/5 + 32;const fahrenheitToCelsius = (fahrenheit) => (fahrenheit - 32) * 5/9;// ExamplescelsiusToFahrenheit(15); // 59celsiusToFahrenheit(0); // 32celsiusToFahrenheit(-20); // -4fahrenheitToCelsius(59); // 15fahrenheitToCelsius(32); // 0
const quickSort = arr => {const a = [...arr];if (a.length < 2) return a;const pivotIndex = Math.floor(arr.length / 2);const pivot = a[pivotIndex];const [lo, hi] = a.reduce((acc, val, i) => {if (val < pivot || (val === pivot && i != pivotIndex)) {acc[0].push(val);} else if (val > pivot) {acc[1].push(val);}return acc;},[[], []]);return [...quickSort(lo), pivot, ...quickSort(hi)];};console.log(quickSort([1, 6, 1, 5, 3, 2, 1, 4])) // [1, 1, 1, 2, 3, 4, 5, 6]