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Regex expressions in Java, \\s vs. \\s+
What's the difference between the following two expressions?
4 Answers
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'Specified condition “$(PackageAsSingleFile)” evaluates to “” instead of a boolean?
...e project again. Restarting VS2013 resolved it.
– Xaniff
May 24 '14 at 19:33
2
This seems to be a...
How do you get the “object reference” of an object in java when toString() and hashCode() have been
...for debugging purposes.
I.e. to make sure that the object is the same (or different) depending on the situation.
6 Answers
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How do I remove leading whitespace in Python?
...ce which may be more that spaces (tabs etc). That's usually what you want. If you want to remove spaces and spaces only, call " bla".lstrip(" ")
– balpha
Jun 6 '09 at 8:03
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How to add semicolon after method call when inside parameter list in IntelliJ IDEA?
...yage back to IntelliJ via Eclipse. Currently my Eclipse is set up so that if I currently have a statement such as this (where ^ denotes where my cursor currently sits):
...
Multiple inputs with same name through POST in php
... an indefinite number of physical addresses along with other information. If I simply gave each of those fields the same name across several entries and submitted that data through post, would PHP be able to access it?
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Get root view from current activity
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If you need root view of your activity (so you can add your contents there) use
findViewById(android.R.id.content).getRootView()
Also it was reported that on some devices you have to use
getWindow().getDecorView().findVi...
Bypass confirmation prompt for pip uninstall
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If you want to uninstall every package from requirements.txt,
pip uninstall -y -r requirements.txt
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How to convert JSON string to array
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If you pass the JSON in your post to json_decode, it will fail. Valid JSON strings have quoted keys:
json_decode('{foo:"bar"}'); // this fails
json_decode('{"foo":"bar"}', true); // returns array("foo" => "bar")
j...
Python: List vs Dict for look up table
... amortized O(1), with regard to the number of items in the data structure. If you don't need to associate values, use sets.
Memory
Both dictionaries and sets use hashing and they use much more memory than only for object storage. According to A.M. Kuchling in Beautiful Code, the implementation tri...