Match Emojis with Regular Expressions
When experimenting with unicode property escapes, to identify accented letters in strings, it reminded me of a question I had a few years ago: what is the best way to identify and then replace emojis in a string? I first noticed this practice when using emojis in Facebook -- sometimes Facebook would replace an emoji with one of their own custom images, likely because another device may not support that emoji.
Much the way you can match accented characters, you can use unicode property escapes to match emojis:
const emojis = "😂😂💯".match(/\p{Emoji_Presentation}/gu);
// ["😂", "😂", "💯"]
I've previously seen massive arrays of every emoji ever created, and it may be possible that {Emoji_Presentation} doesn't contain all emojis across all devices, but this regex has matched every case I've come across.
Happy emoji....ing!
![Responsive and Infinitely Scalable JS Animations]()
Back in late 2012 it was not easy to find open source projects using requestAnimationFrame() - this is the hook that allows Javascript code to synchronize with a web browser's native paint loop. Animations using this method can run at 60 fps and deliver fantastic...
![CSS Gradients]()
With CSS border-radius, I showed you how CSS can bridge the gap between design and development by adding rounded corners to elements. CSS gradients are another step in that direction. Now that CSS gradients are supported in Internet Explorer 8+, Firefox, Safari, and Chrome...
![dwClickable: Entire Block Clickable Using MooTools 1.2]()
I recently received an email from a reader who was really impressed with Block Clickable, a jQuery script that took the link within a list item and made the entire list item clickable. I thought it was a neat script so I...
![CSS Text Overlap]()
One of the important functions of CSS is to position elements.
Margin, padding, top, left, right, bottom, position, and z-index are just a few of the major players in CSS positioning.
By using the above spacing...
Great stuff!
But actually there are quite a few where
Emoji_Presentationdoes not work. Probably most of (all?) marked here as not Emoji_Presentation https://www.unicode.org/Public/UCD/latest/ucd/emoji/emoji-data.txt but Extended_Pictographic or just Emoji..match(/\p{Emoji}/gu);work too well (matching 1-9, # and *) but
.match(/(\p{Emoji_Presentation}|\p{Extended_Pictographic})/gu)seems to do the charm :)