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Delete directories recursively in Java
... should check out Apache's commons-io. It has a FileUtils class that will do what you want.
FileUtils.deleteDirectory(new File("directory"));
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How to use JavaScript regex over multiple lines?
...d up, even though it spans over newline characters. I thought the 'm' flag does it. Does not.
6 Answers
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How to check if object property exists with a variable holding the property name?
...Obj){
alert("yes, i have that property");
}
Note that hasOwnProperty doesn't check for inherited properties, whereas in does. For example 'constructor' in myObj is true, but myObj.hasOwnProperty('constructor') is not.
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How to make a edittext box in a dialog
...make a edittext box in a dialog box for entering a password.
and when I am doing I am not able to do. I am a beginner in it.
Please help me in this.
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Code Golf - π day
...rint '*' or ' '. If '*', increase the counter by 2
[lN2+sN42P]s1
[32P]s2
# do 1 row
# keeping I in the stack
[
# X in the stack
# Calculate X^2+Y^2 (leave a copy of X)
dd*lYd*+
#Calculate X^2+Y^2-R^2...
lR-d
# .. if <0, execute routine 1 (print '*')
0>1
# .. else execute routine 2 (pr...
How to ALTER multiple columns at once in SQL Server
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This is not possible. You will need to do this one by one.
You could:
Create a Temporary Table with your modified columns in
Copy the data across
Drop your original table (Double check before!)
Rename your Temporary Table to your original name
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How do I escape characters in c# comments?
I realized today that I don't know how to escape characters in comments for C#. I want to document a generic C# class, but I can not write a proper example since I don't know how to escape the < and > characters. Do I have to use &lt; and &gt; ? I don't like if that is the case ...
Where do you include the jQuery library from? Google JSAPI? CDN?
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Without a doubt I choose to have JQuery served by Google API servers. I didn't go with the jsapi method since I don't leverage any other Google API's, however if that ever changed then I would consider it...
First: The Google api ser...
Remove first element from $@ in bash [duplicate]
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Another variation uses array slicing:
for item in "${@:2}"
do
process "$item"
done
This might be useful if, for some reason, you wanted to leave the arguments in place since shift is destructive.
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Concurrent vs serial queues in GCD
...dispatch type (sync or async) is only saying whether the execution goes OR doesn't go to the next instruction? I mean, if I dispatch a task SYNC the code will block until that tasks finishes, no matter what queue it's executed on?
– Bogdan Alexandru
Oct 4 '13 a...