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This site gathers together all the latest tutorials (coding or otherwise) from the IT Learning Centre at Dundalk Institute of Technology.
Be sure to drop into us if you need help getting any of these working!
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It is possible to use the comments system built into Facebook directly on your WordPress site. But why would you want to do this?
Following from the previous tutorial on Conditional Logic in Ruby, look at this example:
# Let the user guess.
print "Enter heads or tails? "
hort = gets.chomp
unless hort == 'heads' || hort == 'tails'
print "I _said_ heads or tails. Can't you read?\n"
exit(1)
end
# Now toss the coin.
toss = if rand(2) == 1 then
"heads"
else
"tails"
end
# Report.
print "Toss was ", toss, ".\n"
print "You Win!\n" if hort == toss
Some more amazing if lore:
unless keyword is like if, but uses the opposite sense of the test: The code is run if the test is false.if may look like a statement, but it is actually an expression, with a return value.if has a postfix form where the condition comes last. This works with unless as well.
This is the conventional use of the if in perl. Notice that there is no need for curly braces ({ and }). The body of the if ends with the appropriate keyword, end, else or elsif. The then word is generally optional, though you need it if you want to put start the body on the same line as the if, the way the last statement does.
VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux based on (the now defunct) TrueCrypt 7.1a. Features include:
Your personal code repository in DkIT can be accessed using the following URL, replace [yourusername] with your login username.
https://svn.comp.dkit.ie/repos/[yourusername]
e.g. for bloggsj
https://svn.comp.dkit.ie/repos/bloggsj
Contact Form 7 can manage multiple contact forms in WordPress, plus you can customize the form and the mail contents flexibly with simple markup. The form supports Ajax-powered submitting, CAPTCHA, Akismet spam filtering and so on.
The biggest downside is that the out of the box forms you add are very plain looking. Thankfully, Contact Form 7 can be easily styled using CSS in your WordPress theme. In this turorial, we will show you how to style contact form 7 forms in WordPress.
A parallel assignment sets several variables at once. All right sides are computed before any variable is assigned, so all right side values are computed with the old variable values. This is very convenient for swapping two values without using a temporary.
For those of you who are unaware of GIMP, here is how the software describes itself:
GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages.
FHS (Filesystem Hierarchy Standard), defines the directory structure and directory contents in Linux operating systems and It is maintained by the Linux Foundation.
This version opens a file for writing, and writes its output to a file selected by the user. The second argument to open is the same as the second argument to a plain C fopen, except it will default to reading.
The object returned from open is class File.