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In vim, how do I get a file to open at the same line number I closed it at last time?
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Finally someone points out that my .viminfo is owned by root for some reason! This needs to be in the other 100 documentations that I read.
– Jack
May 29 '15 at 22:19
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When and why would you seal a class?
... features, so that the original object cannot be "impersonated".
More generally, I recently exchanged with a person at Microsoft, who told me they tried to limit the inheritance to the places where it really made full sense, because it becomes expensive performance-wise if left untreated. The sealed...
What is the proper declaration of main?
...rn type, and what does it mean to return a value from main ? What are the allowed parameter types, and what are their meanings?
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Remove .php extension with .htaccess
...in the PHP file (long story) I am able to access it without the above. I really appreciate your help, this .htaccess stuff is tricky for me.
– Dirty Bird Design
Oct 26 '10 at 19:00
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Android: Remove all the previous activities from the back stack
...LAG_ACTIVITY_CLEAR_TASK.This is the official way to got. No need to change all the activities in the app.
– AlikElzin-kilaka
Feb 13 '15 at 1:50
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How do I run Redis on Windows?
...an use to interact with any Redis instance.
The RGL repository has historically been listed as an alternative Windows port for Redis, but this repository has not been maintained for some time and implements an older version of Redis than the Microsoft port.
It should be noted that the official port ...
Difference between $(window).load() and $(document).ready() functions
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document.ready is a jQuery event, it runs when the DOM is ready, e.g. all elements are there to be found/used, but not necessarily all content.
window.onload fires later (or at the same time in the worst/failing cases) when images and such are loaded, so if you're using image dimensions for exa...
What is causing this error - “Fatal error: Unable to find local grunt”
I removed the old version of grunt first, then I installed the new grunt version, and then I got this error:
13 Answers
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Overriding a Rails default_scope
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Short answer: Do not use default_scope unless you really have to. You'll probably be better off with named scopes. With that said, you can use with_exclusive_scope to override the default scope if you need to.
Have a look at this question for more details.
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Sum a list of numbers in Python
...does integer division: it discards the remainder. To divide things through all the way, we need to use floating-point numbers. Fortunately, dividing an int by a float will produce a float, so we just use 2.0 for our divisor instead of 2.
Thus:
averages = [(x + y) / 2.0 for (x, y) in zip(my_list[:-...