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1828 - Perl - map to process every member of a list (array)
Perl's map function (like array_walk in PHP) allows you to do something to every member of a list - thus it often saves you the need to write a loop into your Perl, saves the Perl runtime going back time and again to the interbal byte code generated by the compiler, and can be very efficient. There ....

1827 - What a shock
You have probably seen the last pictures on this site ... taken with the digital camera I have been using for a couple of years. It was water resistant, contents-of-pocket resistant, and said to be shock resistant - but it turned out not be shock resistant enough for me - a clumsy oaf who managed t ....

1826 - Perl - Subs, Chop v Chomp, => v ,
During courses, I end up writing a lot of short demonstrations to show particular features of a language - this week, it's a Perl Programming Course so those examples are in Perl. Some interesting Perl facts ... a) The => operator can be used to replace the , ("the equals, greater than can be used ....

1825 - Question Mark - Colon operator (Perl and PHP)
The ? and : operator in Perl and PHP allows you to write a single statement that's both an if and an else without the need for all the clutter of keywords, extra variables, and so on if all you want to do is come up with two alternative words. Here's an example in PHP - throwing a number on a die, ....

1824 - Which is your best hotel room?
"Which Room would you recommend for a special weekend ..." Question on the phone from customer booking at Well House Manor. And Lisa's comment - "I feel awkward giving my personal opinion - it may differ from what the customer's would be." Well - give them the data and let the customer choose! "We ....

1823 - FSB - an update.
Last Tuesday, I got a phone call at lunch time asking me if I could attend - as a witness - a D&D (Dispute and Disciplinary) hearing of the FSB (Federation of Small Businesses) at Bath that afternoon. Unsurprisingly, I was giving a training course and couldn't oblige, but the D&D committee ....

1822 - Claverton Pump
What's inside this little building that sits over a back water of the River Avon just a few miles up river from Bath? A 25 foot wide water wheel, with each scoop on the wheel taking no less than half a ton of water [background], and a set of full functioning gears and flywheel - the whole being f ....

1821 - Autumn
We're into Autumn, and on a blustery Sunday we went out to show Chris's mother in law, visiting from South Africa, some of the local scenes in Wiltshire, and Bath and North East Somerset (BaNES). The hardier souls were out in the countryside - a handful of boats moving on the canal, fishermen, cy ....

1820 - Sorting objects in PHP
The OO model in PHP is very powerful indeed - and much more code is now written using the facilities it offers than was the case a year or two ago. On yesterday's Object Oriented Programming in PHP course, I wrote a new example that nicely brought together many of the facilities on offer - you can ....

1819 - Calling base class constructors
In all object oriented languages, you have a facility called inheritance where you can define one type of thing ("class of object") based on another, and the newly defined class ("subclass" or "extended class") takes the initial ("base") class as it starting point. In your code for your base class, ....

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