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Optimise PostgreSQL for fast testing

I am switching to PostgreSQL from SQLite for a typical Rails application. 2 Answers 2 ...
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Proper stack and heap usage in C++?

I've been programming for a while but It's been mostly Java and C#. I've never actually had to manage memory on my own. I recently began programming in C++ and I'm a little confused as to when I should store things on the stack and when to store them on the heap. ...
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Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术

...imed out Socket error 10061 - Connection refused Socket error 10064 - Host is down Socket error 10065 - No route to host Socket error 10067 - Too many processes Socket error 10091 - Network subsystem is unavailable Socket error 10092 - WINSOCK.DLL version out of range Socket error 1009...
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Git Push Error: insufficient permission for adding an object to repository database

...han this is the problem. It's happened to me in the past with some legacy scripts access our git repo and usually means a different (unix) user pushed / modified files last and your user doesn't have permissions to overwrite those files. You should create a shared git group that all git-enabled use...
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setuptools: package data folder location

...unction to __init__.py to locate an absolute path to a data file: import os _ROOT = os.path.abspath(os.path.dirname(__file__)) def get_data(path): return os.path.join(_ROOT, 'data', path) print get_data('resource1/foo.txt') Outputs: /Users/pat/project/foo/data/resource1/foo.txt After th...
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How to check if a file is a valid image file?

... Update I also implemented the following solution in my Python script here on GitHub. I also verified that damaged files (jpg) frequently are not 'broken' images i.e, a damaged picture file sometimes remains a legit picture file, the original image is lost or altered but you are still a...
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Understanding prototypal inheritance in JavaScript

...'Hi, I am prototype property'; abc.prototype.testMethod = function() { alert('Hi i am prototype method') } Creating new instances for function abc var objx = new abc(); console.log(objx.testProperty); // will display Hi, I am prototype property objx.testMethod();// alert Hi i am prototype me...
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How can you programmatically tell an HTML SELECT to drop down (for example, due to mouseover)?

... You can't do this with a HTML select tag, but you can do it with JavaScript and HTML. There are variety of existing controls that do this - for instance, the "suggest" list attached to the SO "interesting/ignored tag" entry, or Gmail's lookup for email adresses. There are many JavaScript+HTML...
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How do I use installed packages in PyCharm?

... know how to specify the jar file and that it is supposed to be used by my script. Could you help me further? – JRsz May 15 '18 at 20:32 ...
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git: How to ignore all present untracked files?

...hort because manual states "Give the output in an easy-to-parse format for scripts. This is similar to the short output, but will remain stable across git versions and regardless of user configuration." So we have both the parseability and stability; grep '^??' filters only the lines starting with ?...