• Feb 5, 2021 •LeifMessinger
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class Timer{ start(){ this.startTime = Date.now(); } stop(){ const dt = Date.now() - this.startTime; console.log(dt); return dt; } getExecTime(fun, asynchronous){ return asynchronous ? this.getAsyncExecTime(fun) : this.getSyncExecTime(fun); } getSyncExecTime(fun){ this.start(); fun(); return this.stop(); } async getAsyncExecTime(fun){ this.start(); await fun(); return this.stop(); } static average(fun, numTimes, asynchronous = false){ const times = []; const promises = []; let timer = new Timer(); if(asynchronous){ for(let i = 0; i < numTimes; i++){ timer.getAsyncExecTime(fun); } }else{ for(let i = 0; i < numTimes; i++){ timer.getSyncExecTime(fun); } } return (times => times.reduce(((sum, acc) => sume + acc), 0) / times.length); } static async timeAsync(fun, numTimes){ if(numTimes <= 1) return new Timer().getAsyncExecTime(fun); const promises = []; let timer = new Timer(true); for(let i = 0; i < numTimes; i++){ promises.push(fun().catch((e)=>{})); } try{ await Promise.all(promises).catch((e)=>{}); }catch(e){ //do absolutely nothing } return timer.stop(); } constructor(start = false){ if(start) this.start(); } }
• Nov 19, 2022 •CodeCatch
0 likes • 5 views
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
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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
• Oct 15, 2023 •LeifMessinger
0 likes • 8 views
//Disclaimer: I do not condone mass web scraping of ESPN websites, and this is just theoretical code that hasn't been used. //Scrape player stats off of https://www.espn.com/nfl/team/roster/_/name/phi/philadelphia-eagles //Example player JS object /* { "shortName": "S. Opeta", "name": "Sua Opeta", "href": "http://www.espn.com/nfl/player/_/id/3121009/sua-opeta", "uid": "s:20~l:28~a:3121009", "guid": "dec19157-e984-f981-3724-498281328c97", "id": "3121009", "height": "6' 4\"", "weight": "305 lbs", "age": 27, "position": "G", "jersey": "78", "birthDate": "08/15/96", "headshot": "https://a.espncdn.com/i/headshots/nfl/players/full/3121009.png", "lastName": "Sua Opeta", "experience": 4, "college": "Weber State" } */ //The page needs to be focused, so you have to put this code in a bookmarklet and click the page before clicking it. Allegedly. navigator.clipboard.writeText(JSON.stringify( window["__espnfitt__"].page.content.roster.groups.flatMap((group)=>{ return group.athletes.map((athlete)=>{ //We can assume all football players are above 100 lbs and below 1000 lbs. athlete.weight = parseInt(athlete.weight.substring(0,3)); if(athlete.experience == "R") athlete.experience = 0; else athlete.experience = parseInt(athlete.experience); //We can assume players are at least 1 foot, or under 10 feet tall. athlete.inches = 12 * parseInt(athlete.height.substring(0, 1)); //Add feet in inches athlete.inches += parseInt(athlete.height.substring(2).replaceAll("\"", "").trim()); //Add remaining inches const monthDayYear = athlete.birthDate.split("/"); athlete.birthMonth = parseInt(monthDayYear[0]); athlete.birthDay = parseInt(monthDayYear[1]); athlete.birthYear = parseInt(monthDayYear[2]); //The only really useful stuff we get from this is Height, weight, left handedness, age, position, and birthday return athlete; }); }) , null, "\t")).then(null, ()=>{alert("That failed.")}); //Changes all the team links on this page https://www.espn.com/nfl/stats/team to the team's roster for easier scraping $$("table > tbody > tr > td > div > div > a").forEach((elm)=>{ elm.setAttribute("href", elm.getAttribute("href").replace("team/", "team/roster/")); });
• Jul 13, 2025 •West
0 likes • 3 views
const express = require('express') const app = express() const port = 3000 app.get('/', (req, res) => { res.send('Hello World!') }) app.listen(port, () => { console.log(`Example app listening on port ${port}`) })
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const hammingDistance = (num1, num2) => ((num1 ^ num2).toString(2).match(/1/g) || '').length; hammingDistance(2, 3); // 1