Possibility to strip the keys from string

README.md

@@ -30,6 +30,7 @@ emoji.find('pizza') // Find the `pizza` emoji, and returns `({ emoji: '🍕', ke
 emoji.hasEmoji('🍕') // Validate if this library knows an emoji like `🍕`
 emoji.hasEmoji('pizza') // Validate if this library knowns a emoji with the name `pizza`
 emoji.strip('⚠️ 〰️ 〰️ low disk space') // Strips the string from emoji's, in this case returns: "low disk space".
+emoji.strip('I :heart: coffee!', true) // Strips the keys from string, in this case returns: "I  coffee!".
 emoji.replace('⚠️ 〰️ 〰️ low disk space', (emoji) => `${emoji.key}:`) // Replace emoji's by callback method: "warning: low disk space"
 ```
 

lib/emoji.js

@@ -9,6 +9,11 @@ var emojiByName = require('./emoji.json');
  */
 var emojiNameRegex = /:([a-zA-Z0-9_\-\+]+):/g;
 
+/**
+ * regex to remove emoji key strings, e.g. "":coffee: coffee" -> coffee
+ */
+var removeNameRegex = /:.*?\:/;
+
 /**
  * regex to trim whitespace
  * use instead of String.prototype.trim() for IE8 support
@@ -294,9 +299,12 @@ Emoji.replace = function replace (str, replacement, cleanSpaces) {
 /**
  * remove all emojis from a string
  * @param {string} str
+ * @param {boolean} onlyKeys strips only the keys on string, e.g. ":coffee: coffe" -> " coffe"
  * @return {string}
  */
-Emoji.strip = function strip (str) {
+Emoji.strip = function strip (str, onlyKeys = false) {
+  if (onlyKeys) return str.split(removeNameRegex).join('');
+
   return Emoji.replace(str, '', true);
 };
 

test/emoji.js

@@ -303,5 +303,15 @@ describe("emoji.js", function () {
       var result = emoji.strip('Host: eseaps001 Addr: 10.XX.XX.XX: - ⚠️ 〰️ 〰️ low disk space');
       result.should.equal('Host: eseaps001 Addr: 10.XX.XX.XX: - low disk space');
     });
+
+    it('Should be able to strip only emojis names', function() {
+      var result = emoji.strip('I :love: cleaning', true);
+      result.should.equal('I  cleaning');
+    });
+
+    it('Should be able to strip all emojis names', function() {
+      var result = emoji.strip('I :heart: cleaning and :coffee:', true);
+      result.should.equal('I  cleaning and ');
+    });
   });
 });