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How do you use a variable in a regular expression?
I would like to create a String.replaceAll() method in JavaScript and I'm thinking that using a regex would be most terse way to do it. However, I can't figure out how to pass a variable in to a regex. I can do this already which will replace all the instances of "B" with "A" .
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How to express a NOT IN query with ActiveRecord/Rails?
...e come to this, if you are using Rails 4 look at the answers by Trung Lê` and VinniVidiVicci.
15 Answers
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Colored logcat in android studio by colorpid
...ink github colored logcat I am looking for any solution how to use it in android studio/intellij. Is there in android studio any option to modify calling adb logcat ?
Here is the example how it works.
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What is the difference between Serializable and Externalizable in Java?
What is the difference between Serializable and Externalizable in Java?
11 Answers
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Relative imports in Python 2.7
... is that there is a big difference between directly running a Python file, and importing that file from somewhere else. Just knowing what directory a file is in does not determine what package Python thinks it is in. That depends, additionally, on how you load the file into Python (by running or b...
How do I trap ctrl-c (SIGINT) in a C# console app
...ee MSDN:
Console.CancelKeyPress Event
Article with code samples:
Ctrl-C and the .NET console application
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How to fix the flickering in User controls
...heck my code in this thread for the solution. It has side-effects though, and doesn't actually increase painting speed. The code is simple, paste this in your form (not the user control):
protected override CreateParams CreateParams {
get {
CreateParams cp = base.CreateParams;
cp.ExStyl...
How to copy Java Collections list
I have an ArrayList and I want to copy it exactly. I use utility classes when possible on the assumption that someone spent some time making it correct. So naturally, I end up with the Collections class which contains a copy method.
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Django “xxxxxx Object” display customization in admin action sidebar
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Using the __str__ method works on Python3 and Django1.8:
class MyModel(models.Model):
name = models.CharField(max_length=60)
def __str__(self):
return 'MyModel: {}'.format(self.name)
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PHP regular expressions: No ending delimiter '^' found in
...n addition, if you're just validating, you don't need the capturing group, and can simplify the regex to /^\d+$/.
Example: http://ideone.com/Ec3zh
See also: PHP - Delimiters
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