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How to copy an object in Objective-C
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What's the dSYM and how to use it? (iOS SDK)
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How to check whether a file or directory exists?
...// file does not exist
} else {
// other error
}
}
See : http://golang.org/pkg/os/#IsNotExist
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Execute bash script from URL
Say I have a file at the URL "http://mywebsite.com/myscript.txt" that contains a script:
14 Answers
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Batch files - number of command line arguments
...still use shift to count more than 9 ... and without having 10 lines of equally-looking code.
– Joey
Sep 30 '09 at 13:13
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Unicode characters in URLs
... take care of display & paste issues and make it human-readable. E. g. http://ko.wikipedia.org/wiki/위키백과:대문
Edit: when you copy such an url in Firefox, the clipboard will hold the percent-encoded form (which is usually a good thing), but if you copy only a part of it, it will remain...
Checking if a string can be converted to float in Python
...False
print(isfloat("12.34.56")) False Two dots not allowed.
print(isfloat("#56")) False
print(isfloat("56%")) False
print(isfloat("0E0")) True
print(isfloat("x86E0")) False
print(isfloat("86-5")) ...
std::enable_if to conditionally compile a member function
... I want to use std::enable_if to choose between two member-functions and allow only one of them to be used.
7 Answers
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Cost of len() function
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How to “EXPIRE” the “HSET” child key in redis?
I need to expire all keys in redis hash, which are older than 1 month.
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