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Ruby class instance variable vs. class variable
... instance variable on a class (not on an instance of that class) you can store something common to that class without having sub-classes automatically also get them (and vice-versa). With class variables, you have the convenience of not having to write self.class from an instance object, and (when d...
How to get access to HTTP header information in Spring MVC REST controller?
...ate a parameter with @RequestHeader, the parameter retrieves the header information. So you can just do something like this:
@RequestHeader("Accept")
to get the Accept header.
So from the documentation:
@RequestMapping("/displayHeaderInfo.do")
public void displayHeaderInfo(@RequestHeader("Accep...
Finding the mode of a list
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This is the correct answer to OP, considering it does not require any extra imports. Good job, David
– Jason Parham
Apr 15 '15 at 15:48
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Count number of occurrences of a pattern in a file (even on same line)
When searching for number of occurrences of a string in a file, I generally use:
5 Answers
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How do you find the sum of all the numbers in an array in Java?
... in an array in Java. I cannot find any useful method in the Math class for this.
26 Answers
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How to disable phone number linking in Mobile Safari?
Safari on iPhone automatically creates links for strings of digits that appear to the telephone numbers. I am writing a web page containing an IP address, and Safari is turning that into a phone number link. Is it possible to disable this behavior for a whole page or an element on a page?
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Remove padding from columns in Bootstrap 3
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You'd normally use .row to wrap two columns, not .col-md-12 - that's a column encasing another column. Afterall, .row doesn't have the extra margins and padding that a col-md-12 would bring and also discounts the space that a column...
How are 3D games so efficient? [closed]
...they need to render, and
They take special advantage of your hardware.
For instance, one easy optimization you can make involves not actually trying to draw things that can't be seen. Consider a complex scene like a cityscape from Grand Theft Auto IV. The renderer isn't actually rendering all of ...
Disable migrations when running unit tests in Django 1.7
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Look at this workaround, posted by Bernie Sumption to the Django developers mailing list:
If makemigrations has not yet been run, the "migrate" command treats
an app as unmigrated, and creates tables directly from the models just
l...
How to pass optional arguments to a method in C++?
... even though it would be defined as literal 0. It is not a universal name for constant zero. For integers (non-pointers) you should use numbers: int mode = 0.
– UncleBens
Sep 24 '10 at 4:53
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