The Illusion of String.length: How to safely count Unicode, Emojis, and Words in JS

If you are building a text input that restricts users to a specific character limit (like a tweet, an SMS gateway, or an SEO meta tag), your first instinct is probably to use String.prototype.length. If you are doing this in production today, your character counts are fundamentally broken. Take a look at this standard JavaScript behavior:... Weiterlesen