On Coffeescript.org:  bawbag = (x, y) ->     z = (x * y)  bawbag(5, 10)    would compile to:  var bawbag; bawbag = function(x, y) {   var z;   return (z = (x * y)); }; bawbag(5, 10);   compiling via coffee-script under node.js wraps that so:  (f...
I have implemented an angularjs single page application using ui-router.   Originally I identified each state using a distinct url however this made for unfriendly, GUID packed urls.  So I have now defined my site as a much simpler state-machine. T...
While looking at code on github, I found the following:  (function() {  }).call(this);   This is clearly a self invoking anonymous function. But why is it written this way? I'm used to seeing the canonical variant (function() {})().  Is there a...
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I'm trying to create a simple form with react, but facing difficulty having the data properly bind to the defaultValue of the form.  The behavior I'm looking for is this:   When I open my page, the Text input field should be filled in with...
I have a Backbone Model:  class DateTimeSelector extends Backbone.Model    initialize: ->     @bind 'change:date', @updateDatetime     @bind 'change:time', @updateDatetime    updateDatetime: =>     # do some stuff with the sate...
I have an array that looks like the following:  array = [[1, 5], [4, 7], [3, 8], [2, 3],    [12, 4], [6, 6], [4, 1], [3, 2],   [8, 14]]   What I need is the largest number from the first value of the sets, so in this case 12. Looking at some examples...
There are many questions about this, not least:   jQuery version of array contains, a solution with the splice method and many more. However, they all seem complicated and annoying.  With the combined powers of javascript, jQuery and coffeescript, wh...
I have a mongo database set up.  creating a new date object in mongoDb create a date object in ISO format eg: ISODate("2012-07-14T00:00:00Z")  I am using node.js to connect to mongo database and query the database. when ever I create a new da...
I run into the situation where I have multiple JQuery Promises in an Array  var arrayOfPromises = [ $.Deferred(), $.Deferred(), $.Deferred(), $.Deferred() ]   and need to turn it into a JQuery Promise of an Array  var promiseOfArray = someTransform(a...

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