Spoiler warning: This is not true inheritance as we are used have to in static languages. It is not even prototypal inheritance. It is merely an experiment to find out if it is possible to achieve (mock) inheritance using jQuery.extend() method. And yes, it is kind of possible. JQuery.extend basically copies properties from one object onto another. So […]
Category Archives: jQuery
Little jQuery.extend gotcha
jQuery.extend() is a very powerful function for merging two objects or for extending jQuery with custom plugins. There is but one little gotcha to think about: as in most function calls the order of parameters matters 🙂 Following two fragments of code yields different objects var a = { aa : ‘1’ , bb : […]
Proposal for WordPress plugin – customScript
<script src=”http://demos.davidjs.com/customScript/raphaeljs.js”></script><script type=”text/javascript”charset=”utf-8″>window.onload=function(){var r=Raphael(“holder”,640,480),p=r.path(“M295.186,122.908c12.434,18.149,32.781,18.149,45.215,0l12.152-17.736c12.434-18.149,22.109-15.005,21.5,6.986l-0.596,21.49c-0.609,21.992,15.852,33.952,36.579,26.578l20.257-7.207c20.728-7.375,26.707,0.856,13.288,18.29l-13.113,17.037c-13.419,17.434-7.132,36.784,13.971,43.001l20.624,6.076c21.103,6.217,21.103,16.391,0,22.608l-20.624,6.076c-21.103,6.217-27.39,25.567-13.971,43.001l13.113,17.037c13.419,17.434,7.439,25.664-13.287,18.289l-20.259-7.207c-20.727-7.375-37.188,4.585-36.578,26.576l0.596,21.492c0.609,21.991-9.066,25.135-21.5,6.986L340.4,374.543c-12.434-18.148-32.781-18.148-45.215,0.001l-12.152,17.736c-12.434,18.149-22.109,15.006-21.5-6.985l0.595-21.492c0.609-21.991-15.851-33.951-36.578-26.576l-20.257,7.207c-20.727,7.375-26.707-0.855-13.288-18.29l13.112-17.035c13.419-17.435,7.132-36.785-13.972-43.002l-20.623-6.076c-21.104-6.217-21.104-16.391,0-22.608l20.623-6.076c21.104-6.217,27.391-25.568,13.972-43.002l-13.112-17.036c-13.419-17.434-7.439-25.664,13.288-18.29l20.256,7.207c20.728,7.374,37.188-4.585,36.579-26.577l-0.595-21.49c-0.609-21.992,9.066-25.136,21.5-6.986L295.186,122.908z”).attr({stroke:”#666″,opacity:.3,”stroke-width”:10}),over=r.path().attr({stroke:”#fff”}),e=r.ellipse(295.186,122.908,5,5).attr({stroke:”none”,fill:”#fff”}).onAnimation(function(){over.attr({path:”M295.186,122.908L”+this.attr(“cx”)+”,”+this.attr(“cy”)+”z”});});e.clone();e.attr({rx:7,ry:3});var rotateAlongThePath=true;function run(){e.animateAlong(p,2e4,rotateAlongThePath,function(){e.attr({cx:295.186,cy:122.908,rotation:0});setTimeout(run);});rotateAlongThePath=!rotateAlongThePath;};run();var logo=r.set(r.rect(13,13,116,116,30).attr({stroke:”none”,fill:”#fff”,rotation:45,opacity:.2}),r.path(“M129.657,71.361c0,3.812-1.105,7.451-3.153,10.563c-1.229,1.677-2.509,3.143-3.829,4.408l-0.095,0.095c-6.217,5.912-13.24,7.588-19.2,7.588c-3.28,0-6.24-0.508-8.566-1.096C81.19,89.48,66.382,77.757,59.604,60.66c3.65,1.543,7.662,2.396,11.869,2.396c15.805,0,28.849-12.04,30.446-27.429l22.073,22.072C127.645,61.351,129.657,66.201,129.657,71.361zM18.953,85.018c-3.653-3.649-5.663-8.5-5.663-13.656c0-5.16,2.01-10.011,5.661-13.656l14.934-14.935c-3.896,13.269-5.569,27.23-4.674,40.614c0.322,4.812,0.987,9.427,1.942,13.831L18.953,85.018zM44.482,46.869c3.279,25.662,23.592,50.991,47.552,57.046c3.903,0.986,7.729,1.472,11.432,1.472c0.055,0,0.107-0.005,0.161-0.005l-18.501,18.503c-3.647,3.646-8.498,5.654-13.652,5.654c-3.591,0-7.021-0.993-10.01-2.815l0.007-0.01c-1.177-0.78-2.298-1.66-3.388-2.593c-0.084-0.082-0.176-0.153-0.26-0.236l-3.738-3.738c-7.688-8.825-12.521-21.957-13.561-37.517C39.736,70.853,41.149,58.578,44.482,46.869″).attr({fill:”#f89938″,stroke:”none”,opacity:.5}),r.circle(71,32,19).attr({stroke:”none”,fill:”#39f”,opacity:.5}));logo.translate(245,177);};</script> You will only see the demo animation if you click link to this post Motivation For this blog I am using WordPress and I am quite happy with it, but I miss one feature – the ability to add custom javascript code to given post. I do not […]
Look at the stars … and see code
starryNight plugin API This is an update to my previous post. I wrote nice to look at animation on top of jQuery called starryNight. It takes a <div> element and add moving stars on top of it. Stars are slowly floating across the sky, and when they finally flow out of the sky (or <div> […]
Don’t forget to play
Sometimes I need to do something what is not useful at all, just for the fun of it. Someone plays World of Warcraft as a hobby, someone listens to music, drinks, draws.. whatever. I make animations in javascript. It’s half fun and half learning. I can try new things, I can experiment, discover …and what […]
jQuery datepicker improved
I like jQuery’s datepicker a lot, but I miss two things – one is some kind of mask on the input field so I can write date directly without worrying about the correct date format, and the second is customisable trigger (the thing you click on to toggle the calendar widget 🙂 ) Masked input […]
Fun with tooltips on a timeline
This is a fun script I created during my idle hours while at previous employer. I wanted to somehow mimic comix-like conversation but on a single image only. It was just for fun, but it can be however used to do something more useful;) What it basically does is that it displays tooltips in a […]
jQuery.durationpicker plugin
[Important Notice: I’ve discovered some bug in demo of durationPicker. It runs correctly only in FF. I will fix it soon and notify you here.] Have you ever looked at Googles’s (excellent) calendar app and wished that you had the ‘event planing widget’ in your web form? Well, here is my own version, a […]
Developer’s Medal of Honor
This is what you get if someone discoveres a bug in your code… … more than once. PS: It was not 10 bugs, just two, but the Medal was intended to be future-proof 🙂
jQuery.datepicker – issue with duplicate ID
I have discovered (minor) issue with jQuery Datepicker plugin: It’s not actually datepicker’s fault, but it might be difficult to find it in a complex web page, so I decided to share it with you. Imagine that your application relies heavily on javascript, ajax, widgets etc… Widgets are created on the fly, and it happens […]