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Shell one liner to prepend to a file
...bash example above that the double quotes span over the carriage return in order to demonstrate prepending multiple lines. Check your shell and text editor are being cooperative. \r\n comes to mind.
– John Mee
Mar 19 '10 at 5:05
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Difference between applicationContext.xml and spring-servlet.xml in Spring Framework
...ns defined in springweb-servlet.xml are instantiated.
So the instantiation order is: the root (application context), then FrameworkServlet.
Now it should be clear why they are important in which scenario.
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With arrays, why is it the case that a[5] == 5[a]?
... then a[0] is at 0x1230, a[1] is at 0x1234, a[2] at 0x1238...a[5] at x1244 etc. If we just add 5 to 0x1230, we get 0x1235, which is wrong.
– James Curran
Dec 19 '08 at 17:21
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How to decorate a class?
...ython 2.7, (and @wraps, which maintains the original function's docstring, etc.):
def dec(klass):
old_foo = klass.foo
@wraps(klass.foo)
def decorated_foo(self, *args ,**kwargs):
print('@decorator pre %s' % msg)
old_foo(self, *args, **kwargs)
print('@decorator pos...
Why can I create a class named “var”?
... team did this. Same for other later introduced "keywords" like from, join etc (all contextual by the way).
– Abel
May 15 '12 at 17:38
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querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...ementsByClassName("class1 class2")
Using getElement* on a static element fetched with querySelector* will result in an element that is live with respect to the static subset of the DOM copied by querySelector, but not live with respect to the full document DOM... this is where the simple live/stati...
In SQL Server, when should you use GO and when should you use semi-colon ;?
...o that particular batch.
Any declarations of Variables, Table Variables, etc do not go across GO statements.
#Temp tables are local to a connection, so they span across GO statements.
Semicolon
A Semicolon is a statement terminator. This is purely used to identify that a particular statement ha...
How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP
...pt call vs. python import. Yes, I will in fact use export PATH=$PATH:/home/etc
– Randy Skretka
Nov 11 '13 at 23:35
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JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images
...,
canvas = document.createElement('canvas'),
ctx = canvas.getContext("2d");
// set proper canvas dimensions before transform & export
if (4 < srcOrientation && srcOrientation < 9) {
canvas.width = height;
canvas.height = width;
} else {
...
Why don't self-closing script elements work?
...ting and uniting the implementations.
(This is why <br/> <hr/> etc. are valid HTML 5 despite being invalid HTML4.)
Self-closing <script> is one of the tags where implementations used to differ.
It used to work in Chrome, Safari, and Opera; to my knowledge it never worked in Intern...