When to optimize?
“We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil.” — Donald Knuth
Curiosity of the space, how do we know how big the universe is?
Given light can travel forever in a vacuum, and given we use the light spectrum to determine the distance of other galaxies, however there are still particles in the outer space, and they might distort and absorb the photons, or even blocked by other planets, so some of the lights from further galaxy might not… Read More »
Git Rebase – clearing your confusion
I have been using git for a few months now, surely it’s great, and of course confusing, sometimes. For example, I was very confused with the rebase function, not that I didn’t understand what the purpose of it, but the workflow wasn’t so clear to me. So I asked on stackoverflow and got a pretty… Read More »
How to apply patches from Git commits
The following link shows you how to generate a patch file from git commits, http://ariejan.net/2009/10/26/how-to-create-and-apply-a-patch-with-git/ In the second part of this artcle, I will show you how to use the generated patch to apply to the working directory. to be continued…
How to extend JQuery UI plugin
The existing dialog plugin doesn’t have an option to close dialog on clicking modal overlay, how to add an option to provide the functionality? (function($){ var _init = $.ui.dialog.prototype._init; $.ui.dialog.prototype._init = function(){ var self = this; _init.apply(this,arguments); $(‘.ui-widget-overlay’).live(‘click’, function(){ if (self.options[‘overlay_close’]){ self.destroy(); } }); } })($);
Google Map v3 OverlayView Code Sample
Today I was writing some google map javascripts and had to implement the icons via OverlayView class, so I think I might share it in case anyone need some sample code. //”gmap” is an instance of the google map //creating the class to exntend the google map OverlayView class function MapLocationIcon(id,lat,lng,title,icon_class){ this.lat = lat; this.lng… Read More »
Python code snippet for DPS webservice
import suds url = “https://sec.paymentexpress.com/WS/PXWS.asmx?WSDL” client = suds.client.Client(url) #print client username = “USERNAME” password = “PASSWORD” trans = client.factory.create(‘TransactionDetails’) trans.amount = 1 trans.cardHolderName = “Test” trans.cardNumber = ‘4111111111111111’ trans.inputCurrency= ‘NZD’ trans.cvc2 = ‘000’ trans.dateExpiry = ‘0412’ trans.txnType = ‘Purchase’ print client.service.SubmitTransaction(username, password, trans)
Cairns Arcade (Caine’s)
Very inspirational little short flim about kid with his cardboard arcades
MySQL locate function
So everyone knows sql LIKE to search wildcard matches the criteria. How about in a situation that you need to return all the rows that has value is part of the criteria string. eg. given a full URL http://www.abc.com/bl/abcdefg/, return all the rows with uri_part field that values are part of the URL string. +————+… Read More »
JQuery .text() function does not reflect most current value
as title, should use .val() instead.