improve performance of Workflow.prototype.can() method fixes #12 (#13)

Author: alxolr

.eslintrc.json

@@ -4,6 +4,8 @@
         "import"
     ],
     "rules":{
-        "no-param-reassign":"off"
+		"arrow-body-style": "off",
+		"no-param-reassign": "off",
+		"padded-blocks": "off"
     }
 }

src/module/workflow.js

@@ -79,16 +79,11 @@ class Workflow extends EventEmitter {
   }
 
   can(subject, transitionName) {
-    let canTransit = false;
-    const transitions = this.getEnabledTransitions(subject);
 
-    transitions.forEach((transition) => {
-      if (transition.name === transitionName) {
-        canTransit = true;
-      }
-    });
+    return this.getEnabledTransitions(subject).some((transition) => {
 
-    return canTransit;
+      return (transition.name === transitionName);
+    });
   }
 
   apply(subject, transitionName) {