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5 tutorials

Step-by-step programming tutorials on PHP, JavaScript, Laravel, WordPress and more.

All JavaScript 55 Tips & Tricks 50 Hidden Features 42 CSS 40 PHP 37 UX 36 Performance 22 Debugging 19 Browser APIs 18 DOM 14 AJAX 12 Forms 11 Security 10 jQuery 8 Animations 7 HTML 2

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PHP Intermediate

Stop Translating Month Names by Hand: PHP's intl Extension

Currency placement, month names, ordinal suffixes, "1.234,56" vs "1,234.56" - the intl extension knows every locale's rules, and most PHP developers never call it.

Jan 18, 2026 2 min 346

CSS Intermediate

margin-inline and Friends: CSS That Survives Translation

margin-left breaks the moment your site meets Arabic or Hebrew. Logical properties describe direction-relative intent - and they are more ergonomic even if you never localize.

Aug 26, 2025 2 min 705

JavaScript Beginner

"1 item" vs "2 items": Stop Writing That Ternary

Intl.PluralRules knows every language's plural categories and Intl.ListFormat writes "a, b, and c" correctly - two tiny APIs that end string-building guesswork.

Jun 14, 2025 2 min 2,382

JavaScript Beginner

Format Currencies and "1.2K" Counts Without a Library

Intl.NumberFormat handles currencies, compact notation, percentages and units in the user's locale - the kind of formatting everyone installs a package for.

May 12, 2024 2 min 1,629

JavaScript Beginner

"3 Days Ago" Without a Library: Intl.RelativeTimeFormat

You do not need moment.js or dayjs to print "yesterday" or "in 3 weeks". The Intl API does relative time, in the user's own language, with zero dependencies.

Jan 26, 2024 2 min 5,385

Carlo Fontanos

Stop Translating Month Names by Hand: PHP's intl Extension

margin-inline and Friends: CSS That Survives Translation

"1 item" vs "2 items": Stop Writing That Ternary

Format Currencies and "1.2K" Counts Without a Library

"3 Days Ago" Without a Library: Intl.RelativeTimeFormat