I got the Json "false" from server. I respond as bool but it's Json so it's in browser type is String instead of bool.  So if I run (!data) whenever I want to check "false" == false then they not worked.  So how can I parse bo...

I had to replace the default underscore teplating delimiters/Interpolate regex for compatibility with asp.net webforms.From the website i opted for mustache like syntax  _.templateSettings = {   interpolate : /\{\{(.+?)\}\}/g };   tried this  _.templ...

Is there a compiler or an easy way I can compile and evaluate logical operators and operands specified on an object. This is to akin to mongodb $or and $and operators. For example:  return {   $or: [     foo: [...],     bar: [...]   ] }   When the co...

Lets say I have two vars called value1 and value2. These values would be input by the user but lets just pretend they did already and these are the values      var value1 = 5;     var value2 = 7;      var comparison = .785     I just want to compare...

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i already know the following behavior, but can someone tell me WHY this happens? Thanks.  if("hello"==true)alert("it's true!"); //-> does not fire the alert if("hello"==false)alert("it's true!"); //-> doe...

If I have javascript array with objects inside, something like this  articlesParams[itemId].properties.loaded   If I try do this:  if ( typeof articlesParams[itemId].properties.loaded != 'undefined' && ...) {     // do something... }...

I am using this "!!" comparation in order to compare with "undefined". However, is there any other way to do it?  isWidgetTemplatesLoaded: function(widgetName) {            return !!templates[widgetName]; }   Thanks...

check my simple collection:  {_id: "01",   name: "Jimmy",   canDrive: false }   What I want to do once a document is found, is to manipulate a DOM and show a <div class="driving-tutorial> if the field canDrive value is false...

getting a terrible headache after hours of trying to get this to work. I am using PEG.js parsing to get an input query parsed into an array. Right now im trying my best with this grammer. Operands and connectors are static and generated by the app....