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Can't find the 'libpq-fe.h header when trying to install pg gem
...nx), 11.10 (Oneiric Ocelot), 12.04 (Precise Pangolin), 14.04 (Trusty Tahr) and 18.04 (Bionic Beaver)):
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/usr/include/postgresql/libpq-fe.h
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So try installing libpq-dev or its equivalent for your OS:
For Ubuntu/Debian systems: sudo apt-get install libpq-dev
On Red Hat Linux (RHEL) systems:...
How can I use Python to get the system hostname?
...at program for a local network. I would like be able to identify computers and get the user-set computer name with Python.
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vs
What is the difference between stdint.h and cstdint ?
3 Answers
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`staticmethod` and `abc.abstractmethod`: Will it blend?
In my Python app I want to make a method that is both a staticmethod and an abc.abstractmethod . How do I do this?
4 Ans...
How to check if character is a letter in Javascript?
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You can still use a regex and just add more detail as you need it: str.match(/[A-Z|a-z|ü|é]/i); //etc
– Eli
Jun 22 '15 at 21:54
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How exactly does tail recursion work?
I almost understand how tail recursion works and the difference between it and a normal recursion. I only don't understand why it doesn't require stack to remember its return address.
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How to detect if JavaScript is disabled?
...ection. As an alternative it is possible to set a cookie using JavaScript, and then test for that cookie using server-side scripting upon subsequent page views. However this would not be suitable for deciding what content to deliver as it would not be able to distinguish visitors without the cookie...
What is a StoryBoard ID and how can i use this?
i'm new to IOS developing and recently started in Xcode 4.5. I saw for every viewController that i could set some identity variables including the storyboard ID. What is this and how can i use it?
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Get file name from URL
... In version commons-io 2.2 at least you still need to manually handle URLs with parameters. E.g. "example.com/file.xml?date=2010-10-20"
– Luke Quinane
Aug 13 '13 at 5:14
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How do I format a long integer as a string without separator in Java?
...sking on here will probably be more straight forward than trying to understand the documentation for MessageFormat :
6 Ans...