This is a Q&A on whether it is possible to nest the Handlebars lookup helper with if block helper and if not, are there any alternative solutions to it?  Example scenario below, where we need to check whether the items in 'arrayOne' exist...
JavaScript newbie here, I was going through some js code at work when i came across a helper function for object creation, which went like this  createElement = function(name, data){     if(name == TYPES.TEXT){     return new Text(data);     }     el...
I have a function that has inner functions, for my unit test, I only want to test the functionality of the inner function, but when I export the function and call the inner function, npm tests returns an error.  In my main.js:  mainFunction = () =>...
I found this: http://www.symfony-zone.com/wordpress/2008/12/13/use-routing-to-server-localized-and-dynamic-javascript/  But I saw that it has already been built into Symfony with the use_dynamic_javascript() AssetHelper.  I can't find any documen...
Is there an equivalent of "link_to_function" (instead of ":action") when using "draggable_element"?  Basically I need to drag and drop some items and have it reflected locally without contacting the server.  My current setup i...
I am developing web components with meteor-blaze.   In Template helpers,  Template.Button.helpers({ btnName: function() {     var FirstBtn = new ButtonComponents('Name', this.class, '50px', '30px', '#DDDDDD');     retu...
I don't understand how to use the wait helper provided by the Ember.Test package to build our own helpers. The few that I understood, is that we must return systematically "wait(...)" at the end of our helpers. But how report that my asyn...
I'm baffled on this one. If I use a function within a handlebars helper and return the result of that function, nothing is returned.  Here is the template:  <ul>     <li>{{formatid this.id}}</li> </ul>   And here is the he...
Which file do I insert my Handlebars.registerHelper into?   Example. At the bottom of my object's controller/view/model/etc.   The ember docs (http://emberjs.com/guides/templates/writing-helpers/) say to insert it into my Javascript, but being th...
I have a button and I want to set its onClick attribute dynamically each page load.  I want to use application_helper to give it a custom javascript every time.  It seems difficult to do because the Javascript is going to need access to stuff that on...

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