Category Archives: jQuery

Iterate through objects properties with jQuery

By Joshua Lay | Published: May 7, 2012

Tim Büthe $.each( { name: “John”, lang: “JS” }, function(i, n){ alert( “Name: ” + i + “, Value: ” + n ); }); I didn’t realise that you could treat an object just like an array with $.each(). The $.each() function is not the same as $(selector).each(), which is used to iterate, exclusively, over [...]

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Increasing Event Binding Performance using Jquery Delegate

By Joshua Lay | Published: March 16, 2012

An easy performance improvement from Schotime Instead of creating 50 events, one for each row, I’m binding the event to the surrounding table element and then using the fact that the events bubble up through parent elements to catch the appropriate event. The .delegate() method: $("table").delegate("td", "click", function() { $(this).toggleClass("chosen"); }); Please note that for [...]

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Knockout JS talk by Steve Sanderson

By Joshua Lay | Published: March 9, 2012

This looks like a very cool library. I do like the concept of using a Model View ViewModel pattern; especially after using it a lot in ASP .NET MVC3. A view model is a useful abstraction from your model as you can present data to the view in a way the view wants and only [...]

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Stamp pad in backbone.js

By Joshua Lay | Published: March 5, 2012

Recently I’ve been looking at JavaScript frameworks. This is in an effort to reduce how unwieldy the web applications I deal with at work get. One of the first I found is Backbone.js. From my initial foray into it; it’s fairly loose and there are some knowledge gaps that aren’t documented. The issue I’ve found [...]

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HTML5 localstorage – Simple notepad

By Joshua Lay | Published: September 7, 2011

I wanted to create a simple timestamped notepad using just HTML and JavaScript. This meant I wanted to store some data locally, at least in the browser. So I started looking at HTML5′s localstorage. In order to get started I hit up Google and came across this blog post on localstorage. Definitely visit there if [...]

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jQuery .ajax and jsonp

By Joshua Lay | Published: September 5, 2011

I was recently trying to use a jQuery.ajax request with JSONP as my data type. The URL I was trying to hit didn’t exist. Instead of hitting the error function, it was ignored completely! After some digging around I found the issue: error(jqXHR, textStatus, errorThrown) Note: This handler is not called for cross-domain script and [...]

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jquery.hotkeys – secondary action experimentation

By Joshua Lay | Published: August 31, 2011

From jeresig, jquery.hotkeys jQuery Hotkeys is a plug-in that lets you easily add and remove handlers for keyboard events anywhere in your code supporting almost any key combination. I’ve been having a little play around with this and it seems pretty cool. It was missing a secondary action though. E.g. You push ctrl + a [...]

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