The latest articles on DEV Community by xuxiaofeng (@pikafenger). https://dev.to/pikafenger https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3505198%2Fe1cc6921-8a17-4124-b3c7-a4f029d4fe73.png https://dev.to/pikafenger en xuxiaofeng Wed, 17 Sep 2025 02:29:27 +0000 https://dev.to/pikafenger/bill-split-calculator-5h78 https://dev.to/pikafenger/bill-split-calculator-5h78 <p>Stop doing napkin math after every dinner 🍕<br> I built a dead-simple Tip &amp; Bill Split Calculator that runs in your browser—no installs, no tracking, no split-the-check drama.<br> Features the US diners actually need:<br> 15 % | 18 % | 20 % one-tap presets + custom box<br> Auto-splits the total by head-count<br> Optional “round-up” so no one digs for quarters<br> Works offline, mobile-first, dark-mode friendly<br> Generate a downloadable card or share link in two clicks<br> Tech stack: vanilla JS + PWA manifest → 11 kB compressed, loads in &lt; 200 ms on 3G.<br> Code is MIT on GitHub—PRs welcome if you want extra currencies or darker dark mode 😎<br> Live demo 👉 <a href="https://iris.findtruman.io/web/bill_calculator" rel="noopener noreferrer">Bill Split Calculator</a></p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fcp2xibimynwbpkhkhz73.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fcp2xibimynwbpkhkhz73.png" alt=" " width="800" height="903"></a></p> webdev javascript showdev opensource xuxiaofeng Tue, 16 Sep 2025 02:42:56 +0000 https://dev.to/pikafenger/debt-payoff-planner-4h51 https://dev.to/pikafenger/debt-payoff-planner-4h51 <p>1.🎯Still drowning in 19 % APR credit-card juice?</p> <ul> <li>I built a dead-simple calculator that shows exactly how fast you can surface.</li> </ul> <p>2.Punch in every balance + rate → it spits out TWO futures:</p> <ul> <li>Snowball: kill the smallest balance first (quick dopamine)</li> <li>Avalanche: nuke the highest rate first (max $$ saved)</li> </ul> <p>3.Real numbers from my own debt:</p> <ul> <li>Switch to Avalanche → save $823 interest and be debt-free 1 yr 11 mo sooner.</li> <li>No spreadsheet, no 5-hour YouTube course.</li> </ul> <p>4.100 % free, no sign-up, works on your phone.</p> <ul> <li>Stop guessing, start the countdown to $0 balance.</li> <li>Try it → <a href="https://iris.findtruman.io/web/debt_payoff_planner" rel="noopener noreferrer">Debt Payoff Planner</a> </li> </ul> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fuc0c41acs4m8hki3g7jd.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fuc0c41acs4m8hki3g7jd.png" alt=" " width="800" height="600"></a></p>