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What is “Orthogonality”?
... not have side effects; each action (whether it's an API call, a macro invocation, or a language operation) changes just one thing without affecting others. There is one and only one way to change each property of whatever system you are controlling.
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Semicolon before self-invoking function? [duplicate]
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If you concatenate two files with self-invoking functions together that look like this:
File A:
(function(){...A...})()
File B:
(function(){...B...})()
File A+B:
(function(){...A...})()(function(){...B...})()
You have two sta...
PostgreSQL disable more output
...antage that you don't have to remember psql option names, etc.
psql ... | cat
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Check if a table exists in Rails
... Jan 31 '12 at 14:48
alexey_the_catalexey_the_cat
1,5811616 silver badges2828 bronze badges
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How do I return to an older version of our code in Subversion?
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svn doesn't interpret it as a modification, I can't commit that.
– Sandburg
Nov 27 '18 at 15:24
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Is it possible to declare a variable in Gradle usable in Java?
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An example of usage an Api App Key in an Android application (Java and XML)
gradle.properties
AppKey="XXXX-XXXX"
build.gradle
buildTypes {
//...
buildTypes.each {
it.buildConfigField 'String', 'APP_KEY_1', AppKey
it.resValue 'string', 'APP_KEY_2', AppKey...
Writing a dict to txt file and reading it back?
...gt; json.dump(d, open("text.txt",'w'))
This code dumps to a text file
$ cat text.txt
{"two": 2, "one": 1}
Also you can load from a JSON file:
>>> d2 = json.load(open("text.txt"))
>>> print d2
{u'two': 2, u'one': 1}
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Have nginx access_log and error_log log to STDOUT and STDERR of master process
...open to a socket rather than a file. There's an upstream kernel ticket indicating that this is deliberate and by intent: bugzilla.kernel.org/show_bug.cgi?id=1360 -- thus, while this answer is sufficient in some cases, it doesn't fully cover the range of possible failures.
– Cha...
How to saveHTML of DOMDocument without HTML wrapper?
...ants like LIBXML_HTML_NODEFDTD are never removed without some type of deprecation notice, so the above method should roll well into the future, BUT...
...the only caveat is that the DOM implementation could change the way in HTML/BODY tags are placed within the document - for instance, removing t...
How do I make a redirect in PHP?
...t (so before the <!DOCTYPE ...> declaration, for example).
header('Location: '.$newURL);
2. Important details
die() or exit()
header("Location: http://example.com/myOtherPage.php");
die();
Why you should use die() or exit(): The Daily WTF
Absolute or relative URL
Since June 2014 both absolut...