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Regular expression for letters, numbers and - _
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To actually cover your pattern, i.e, valid file names according to your rules, I think that you need a little more. Note this doesn't match legal file names from a system perspective. That would be system dependent and more libera...
When to use enumerateObjectsUsingBlock vs. for
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Ultimately, use whichever pattern you want to use and comes more naturally in the context.
While for(... in ...) is quite convenient and syntactically brief, enumerateObjectsUsingBlock: has a number of features that may or may not prove interesting:
enumerateObjectsUsingBlock: will be as fas...
What is the purpose of the single underscore “_” variable in Python?
...cate that part
of a function result is being deliberately ignored (Conceptually, it is being discarded.), as in code like:
label, has_label, _ = text.partition(':').
As part of a function definition (using either def or lambda), where
the signature is fixed (e.g. by a callback or parent class API), ...
Timeout on a function call
I'm calling a function in Python which I know may stall and force me to restart the script.
18 Answers
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Escaping single quote in PHP when inserting into MySQL [duplicate]
...e it again, the string you get back from the database will not be automatically escaped for you. You'll get back "O'Brien". So, you will need to pass it through mysql_real_escape_string().
share
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mysqli or PDO - what are the pros and cons? [closed]
...nvincing somebody works better with a killer feature. So there it is:
A really nice thing with PDO is you can fetch the data, injecting it automatically in an object. If you don't want to use an ORM (cause it's a just a quick script) but you do like object mapping, it's REALLY cool :
class Student...
What's the standard way to work with dates and times in Scala? Should I use Java types or there are
...310 isn't Joda-Time
Awesome scala lists many of the popular Scala DateTime apis
A new Scala wrapper for Joda Time. This project forked from scala-time since it seems that scala-time is no longer maintained.
import com.github.nscala_time.time.Imports._
DateTime.now // returns org.joda.time.DateTime...
Remove All Event Listeners of Specific Type
I want to remove all event listeners of a specific type that were added using addEventListener() . All the resources I'm seeing are saying you need to do this:
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How do I check if an element is really visible with JavaScript? [duplicate]
In JavaScript, how would you check if an element is actually visible?
16 Answers
16
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URL encoding the space character: + or %20?
...he server in an HTTP request message using method GET or POST, or, historically, via email. The encoding used by default is based on a very early version of the general URI percent-encoding rules, with a number of modifications such as newline normalization and replacing spaces with "+" instead of "...