js/ree.a:1

Author: damianc

javascript/es6/regexp-emoji.md

@@ -0,0 +1,53 @@
+# Matching Emoji in RegExp
+
+`\p{Emoji}` + `u` flag
+
+* Example:
+
+```
+function countEmoji(input) {
+  const c = input.match(
+    /\p{Emoji}/gu
+  );
+
+  return (c || []).length;
+}
+
+
+countEmoji('xd 😱🤠 hehe 🙃 🤕')
+// 4
+
+countEmoji('źć auuu')
+// 0
+
+countEmoji('x🐍x')
+// 1
+
+countEmoji('👍')
+// 1
+```
+
+## `\P{Emoji}`
+
+To match all but emoji use `\P{Emoji}`:
+
+```
+function leaveOnlyEmoji(input) {
+  return input.replace(
+    /\P{Emoji}/gu, ''
+  );
+}
+
+
+leaveOnlyEmoji('xd 😱🤠 hehe 🙃 🤕')
+// '😱🤠🙃🤕'
+
+leaveOnlyEmoji('źć auuu')
+// ''
+
+leaveOnlyEmoji('x🐍x')
+// '🐍'
+
+leaveOnlyEmoji('👍')
+// '👍'
+```