JavaScript全局变量分配

Question

I had written a code as shown, where I was assigning a global variable a value, which suspended my further code execution.

resultCollection is the global variable. Also my program is running in strict mode.

"use strict";
var View = Backbone.View.extend({
     initialize : function(options){
         this.el = options.el;
         resultCollection = options.resultCollection;
         console.log('resultCollection',resultCollection);
         this.render();
     }  

The console.log was never printed and the execution doesn't stop, just suspends or still executing when the global variable was assigned a value.

Why did this happen ? Can anyone give me some insight ?

Answer 1

In the strict mode you should have seen the error in console.

So prepend your variable name with window. and it will work.

PS: see http://jsfiddle.net/zerkms/6M3HM/

In console you would get Uncaught ReferenceError: b is not defined , whereas global a was defined well.