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What does “S3 methods” mean in R?
...ly, the user of your newly created funky model fitting package, it is much more convenient to be able to type predict(myfit, type="class") than predict.mykindoffit(myfit, type="class").
There is quite a bit more to it, but this should get you started. There are quite a few disadvantages to this way...
Get current directory name (without full path) in a Bash script
...f '%s\n' "${PWD##*/}" # to print to stdout
# ...more robust than echo for unusual names
# (consider a directory named -e or -n)
printf '%q\n' "${PWD##*/}" # to print to stdout, quoted for use as shell input
# ...use...
How do I check two or more conditions in one ?
...
Recommendation:
when you have more than one condition with and and or is better separate with () to avoid verification problems
<c:if test="${(not validID) and (addressIso == 'US' or addressIso == 'BR')}">
...
Is there a better way to do optional function parameters in JavaScript? [duplicate]
...mber but its value is NaN. See stackoverflow.com/questions/3215120/… for more
– Paul Dixon
Mar 22 '13 at 10:36
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How to handle more than 10 parameters in shell
I am using bash shell on linux and want to use more than 10 parameters in shell script
2 Answers
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Private vs Protected - Visibility Good-Practice Concern [closed]
...of thumb is: make everything as private as possible. This makes your class more encapsulated, and allows for changing the internals of the class without affecting the code using your class.
If you design your class to be inheritable, then carefully choose what may be overridden and accessible from...
SimpleTest vs PHPunit
...only use the assertTrue() method in simpletest. Web-tests, of course, get more complicated, but they don't have to be excessively so.
– Kzqai
May 10 '12 at 17:09
...
Simple regular expression for a decimal with a precision of 2
...okens vary by implementation. A generic form is:
[0-9]+(\.[0-9][0-9]?)?
More compact:
\d+(\.\d{1,2})?
Both assume that both have at least one digit before and one after the decimal place.
To require that the whole string is a number of this form, wrap the expression in start and end tags such...
What is an idempotent operation?
... idempotent operation is one that has no additional effect if it is called more than once with the same input parameters. For example, removing an item from a set can be considered an idempotent operation on the set.
In mathematics, an idempotent operation is one where f(f(x)) = f(x). For example, ...
Vertically centering a div inside another div [duplicate]
...pact your rendering performance so I would suggest that you use one of the more modern solutions.
Here is an example
Tested in:
FF3.5+
FF4+
Safari 5+
Chrome 11+
IE9+
HTML
<div class="cn"><div class="inner">your content</div></div>
CSS
.cn {
display: table-cel...