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Why do we need the “finally” clause in Python?
...) but it's not a TypeError.
Other control flow statements such as continue and break statements.
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How do I control how Emacs makes backup files?
Emacs puts backup files named foo~ everywhere and I don't like having to remember to delete them. Also, if I edit a file that has a hard link somewhere else in the file system, the hard link points to the backup when I'm done editing, and that's confusing and awful. How can I either eliminate th...
Rails: Is there a rails trick to adding commas to large numbers?
... rather than putting what they would consider a decimal point between thousands. See coloradoblue answer below.
– Kyle Heironimus
Dec 16 '13 at 14:13
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Mutable vs immutable objects
...returning an array of strings from a method) but I'm having trouble understanding what the negative impacts are of this. What are the best practices around using mutable objects? Should you avoid them whenever possible?
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How to replace captured groups only?
I have HTML code before and after the string:
5 Answers
5
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What is the difference between Directory.EnumerateFiles vs Directory.GetFiles?
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From the docs:
The EnumerateFiles and GetFiles methods differ as follows: When you use EnumerateFiles, you can start enumerating the collection of names before the whole collection is returned; when you use GetFiles, you must wait for the whole array of names...
Proper use cases for Android UserManager.isUserAGoat()?
I was looking at the new APIs introduced in Android 4.2 .
While looking at the UserManager class I came across the following method:
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Why is a div with “display: table-cell;” not affected by margin?
...except elements with
table display types other than table-caption, table and inline-table
In other words, the margin property is not applicable to display:table-cell elements.
Solution
Consider using the border-spacing property instead.
Note it should be applied to a parent element with a dis...
How to use android emulator for testing bluetooth application?
...ng. The code is working fine for real devices, but I want to run it on the Android Emulator. How can I use the emulator for bluetooth testing?
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Remove Last Comma from a string
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This will remove the last comma and any whitespace after it:
str = str.replace(/,\s*$/, "");
It uses a regular expression:
The / mark the beginning and end of the regular expression
The , matches the comma
The \s means whitespace characters (space, tab...