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emoji-regex

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    emoji-regex

A regular expression to match all Emoji-only symbols as per the Unicode Standard.


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Package description

What is emoji-regex?

The emoji-regex npm package provides a regular expression to match all Emoji-only symbols as per the Unicode Standard. This package is useful for processing text that contains emojis, allowing developers to identify, validate, or manipulate emojis within strings.

What are emoji-regex's main functionalities?

Matching emojis in a string

This code sample demonstrates how to use emoji-regex to find all emojis in a given string. The regex is executed against a string containing emojis, and it will match each emoji character or sequence.

/(emojiRegex())/g.exec('I ❤️ emoji!')

Replacing emojis in a string

This code sample shows how to replace all emojis in a string with a specific word or character. In this case, every emoji in the string is replaced with the word 'emoji'.

'I ❤️ emoji!'.replace(emojiRegex(), 'emoji')

Counting emojis in a string

This code sample is used to count the number of emojis in a string. The match function returns an array of all emojis found, and the length property of the array indicates the total number of emojis.

'👍👍🏿'.match(emojiRegex()).length

Other packages similar to emoji-regex

Readme

Source

emoji-regex Build status

emoji-regex offers a regular expression to match all emoji symbols (including textual representations of emoji) as per the Unicode Standard.

This repository contains a script that generates this regular expression based on the data from Unicode v13. Because of this, the regular expression can easily be updated whenever new emoji are added to the Unicode standard.

Installation

Via npm:

npm install emoji-regex

In Node.js:

const emojiRegex = require('emoji-regex');
// Note: because the regular expression has the global flag set, this module
// exports a function that returns the regex rather than exporting the regular
// expression itself, to make it impossible to (accidentally) mutate the
// original regular expression.

const text = `
\u{231A}: ⌚ default emoji presentation character (Emoji_Presentation)
\u{2194}\u{FE0F}: ↔️ default text presentation character rendered as emoji
\u{1F469}: 👩 emoji modifier base (Emoji_Modifier_Base)
\u{1F469}\u{1F3FF}: 👩🏿 emoji modifier base followed by a modifier
`;

const regex = emojiRegex();
let match;
while (match = regex.exec(text)) {
  const emoji = match[0];
  console.log(`Matched sequence ${ emoji } — code points: ${ [...emoji].length }`);
}

Console output:

Matched sequence ⌚ — code points: 1
Matched sequence ⌚ — code points: 1
Matched sequence ↔️ — code points: 2
Matched sequence ↔️ — code points: 2
Matched sequence 👩 — code points: 1
Matched sequence 👩 — code points: 1
Matched sequence 👩🏿 — code points: 2
Matched sequence 👩🏿 — code points: 2

To match emoji in their textual representation as well (i.e. emoji that are not Emoji_Presentation symbols and that aren’t forced to render as emoji by a variation selector), require the other regex:

const emojiRegex = require('emoji-regex/text.js');

Additionally, in environments which support ES2015 Unicode escapes, you may require ES2015-style versions of the regexes:

const emojiRegex = require('emoji-regex/es2015/index.js');
const emojiRegexText = require('emoji-regex/es2015/text.js');

Author

twitter/mathias
Mathias Bynens

License

emoji-regex is available under the MIT license.

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Last updated on 10 Apr 2020

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