Adds log option

Author: danburzo

rollup.config.js

@@ -9,14 +9,22 @@ export default [
 name: 'pubsub',
 file: pkg.main
 },
-plugins: [buble()]
+plugins: [
+buble({
+objectAssign: 'Object.assign'
+})
+]
 },
 {
 input: 'src/pubsub.js',
 output: {
 format: 'es',
 file: pkg.module
 },
-plugins: [buble()]
+plugins: [
+buble({
+objectAssign: 'Object.assign'
+})
+]
 }
 ];

src/pubsub.js

@@ -1,6 +1,18 @@
 class pubsub {
-constructor(options = {}) {
-this.options = options;
+constructor(options) {
+this.options = {
+/*
+Enables strict mode (shows more warnings)
+ */
+strict: false,
+
+/*
+Accepts a custom logger
+ */
+log: false,
+
+...options
+};
 this._pubsubEvents = {};
 this._pubsubHappened = {};
 }
@@ -31,6 +43,11 @@ class pubsub {
 for (j = 1; j < arguments.length; j++) {
 args.push(arguments[j]);
 }
+
+if (this.options.log) {
+this.options.log(event, args);
+}
+
 for (j = 0, jlen = eventArray.length; j < jlen; j++) {
 subscriber = eventArray[j];
 ret = subscriber[0].apply(subscriber[1] || this, args);