intl

7 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 Beginner

natsort, Collator and the Spaceship: PHP Sorting Like a Human

"item10" before "item2", "Öl" after "z", uppercase clustering before lowercase - default sorts betray human expectations three different ways. PHP has a fix for each.

Feb 4, 2026 2 min 238

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

JavaScript Advanced

Why "👨‍👩‍👧".length Is 8, and How to Count What Users See

String length counts UTF-16 code units, not characters - so emoji truncation splits families into corpses. Intl.Segmenter counts graphemes, words and sentences correctly.

Jun 23, 2025 2 min 1,174

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

Sorting "file10.txt" After "file2.txt": Natural Sort in One Line

Plain sort puts item10 before item2 because strings compare character by character. Intl.Collator fixes it, handles accents and case, and is faster than localeCompare in loops.

Jun 7, 2025 2 min 2,374

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