How to compare Unicode strings in Javascript?

Question

When I wrote in JavaScript "?" > "Z" it returns true. In Unicode order it should be of course false. How to fix this? My site is using UTF-8.

question from:https://stackoverflow.com/questions/3630645/how-to-compare-unicode-strings-in-javascript

Answer 1

You can use Intl.Collator or String.prototype.localeCompare, introduced by ECMAScript Internationalization API:

"?".localeCompare("Z", "pl");              // -1
new Intl.Collator("pl").compare("?","Z");  // -1

-1 means that ? comes before Z, like you want.

Note it only works on latest browsers, though.