fix(mutation-observe): output of typeof operator should be string

Brooooooklyn · vicb · commit 19703e3fe133 · 2015-12-07T12:13:06.000-08:00
diff --git a/lib/patch/mutation-observer.js b/lib/patch/mutation-observer.js
@@ -39,7 +39,7 @@ function patchClass(className) {
   var prop;
   for (prop in instance) {
     (function (prop) {
-      if (typeof global[className].prototype !== undefined) {
+      if (typeof global[className].prototype !== 'undefined') {
         return;
       }
       if (typeof instance[prop] === 'function') {

Original file line number	Diff line number	Diff line change
`@@ -39,7 +39,7 @@ function patchClass(className) {`
`39`	`39`	`var prop;`
`40`	`40`	`for (prop in instance) {`
`41`	`41`	`(function (prop) {`
`42`		`- if (typeof global[className].prototype !== undefined) {`
	`42`	`+ if (typeof global[className].prototype !== 'undefined') {`
`43`	`43`	`return;`
`44`	`44`	`}`
`45`	`45`	`if (typeof instance[prop] === 'function') {`