Run Prettier

LICENSE.md

@@ -2,26 +2,20 @@ The MIT License
 
 Copyright (c) 2015-2019 Pedro Teixeira and other contributors
 
-
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:
 
-
 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.
 
-
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
-
-
-

README.md

@@ -19,50 +19,54 @@ $ npm install propagate
 ## Propagate
 
 ```javascript
-  var ee1 = new EventEmitter();
-  var ee2 = new EventEmitter();
-  propagate(ee1, ee2);
+var ee1 = new EventEmitter()
+var ee2 = new EventEmitter()
+propagate(ee1, ee2)
 
-  ee2.on('event', function(a, b) {
-    console.log('got propagated event', a, b);
-  });
+ee2.on('event', function(a, b) {
+  console.log('got propagated event', a, b)
+})
 
-  ee1.emit('event', 'a', 'b');
+ee1.emit('event', 'a', 'b')
 ```
 
 ## Unpropagate
 
 You can unpropagate by ending the propagation like this:
 
 ```javascript
-  var ee1 = new EventEmitter();
-  var ee2 = new EventEmitter();
-  var p = propagate(ee1, ee2);
+var ee1 = new EventEmitter()
+var ee2 = new EventEmitter()
+var p = propagate(ee1, ee2)
 
-  // ...
+// ...
 
-  p.end();
+p.end()
 ```
 
 ## Only propagate certain events:
 
 ```javascript
-  var ee1 = new EventEmitter();
-  var ee2 = new EventEmitter();
-  var p = propagate(['event1', 'event2'], ee1, ee2);
+var ee1 = new EventEmitter()
+var ee2 = new EventEmitter()
+var p = propagate(['event1', 'event2'], ee1, ee2)
 ```
 
 ## Propagate certain events as other events:
 
 ```javascript
-  var ee1 = new EventEmitter();
-  var ee2 = new EventEmitter();
-  var p = propagate({
-    'event1': 'other-event1',
-    'event2': 'other-event2'
-  }, ee1, ee2);
+var ee1 = new EventEmitter()
+var ee2 = new EventEmitter()
+var p = propagate(
+  {
+    event1: 'other-event1',
+    event2: 'other-event2',
+  },
+  ee1,
+  ee2
+)
 ```
 
 # License
 
-MIT
+MIT

index.js

@@ -1,75 +1,75 @@
 function propagate(events, source, dest) {
   if (arguments.length < 3) {
-    dest = source;
-    source = events;
-    events = undefined;
+    dest = source
+    source = events
+    events = undefined
   }
 
   // events should be an array or object
   var eventsIsObject = typeof events === 'object'
-  if (events && !eventsIsObject) events = [events];
+  if (events && !eventsIsObject) events = [events]
 
   if (eventsIsObject) {
-    return explicitPropagate(events, source, dest);
+    return explicitPropagate(events, source, dest)
   }
 
-  var oldEmit =  source.emit;
+  var oldEmit = source.emit
 
   source.emit = function(eventType) {
-    oldEmit.apply(source, arguments);
+    oldEmit.apply(source, arguments)
 
-    if (! events || ~events.indexOf(eventType)) {
-      dest.emit.apply(dest, arguments);
+    if (!events || ~events.indexOf(eventType)) {
+      dest.emit.apply(dest, arguments)
     }
   }
 
   function end() {
-    source.emit = oldEmit;
+    source.emit = oldEmit
   }
 
   return {
-    end: end
-  };
-};
+    end: end,
+  }
+}
 
-module.exports = propagate;
+module.exports = propagate
 
 function explicitPropagate(events, source, dest) {
-  var eventsIn;
-  var eventsOut;
+  var eventsIn
+  var eventsOut
   if (Array.isArray(events)) {
-    eventsIn = events;
-    eventsOut = events;
+    eventsIn = events
+    eventsOut = events
   } else {
-    eventsIn = Object.keys(events);
-    eventsOut = eventsIn.map(function (key) {
+    eventsIn = Object.keys(events)
+    eventsOut = eventsIn.map(function(key) {
       return events[key]
     })
   }
 
   var listeners = eventsOut.map(function(event) {
     return function() {
-      var args = Array.prototype.slice.call(arguments);
-      args.unshift(event);
-      dest.emit.apply(dest, args);
+      var args = Array.prototype.slice.call(arguments)
+      args.unshift(event)
+      dest.emit.apply(dest, args)
     }
-  });
+  })
 
-  listeners.forEach(register);
+  listeners.forEach(register)
 
   return {
-    end: end
-  };
+    end: end,
+  }
 
   function register(listener, i) {
-    source.on(eventsIn[i], listener);
+    source.on(eventsIn[i], listener)
   }
 
   function unregister(listener, i) {
-    source.removeListener(eventsIn[i], listener);
+    source.removeListener(eventsIn[i], listener)
   }
 
   function end() {
-    listeners.forEach(unregister);
+    listeners.forEach(unregister)
   }
 }