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What is this Javascript “require”?
...b browser with a limited global context defined mostly by what came to be known as the Document Object Model (DOM) level 0 (the Netscape Navigator Javascript API).
Server-side Javascript eliminates that restriction and allows Javascript to call into various pieces of native code (like the Postgres ...
How to increment a datetime by one day?
... accomplished using timedelta objects:
import datetime
datetime.datetime.now() + datetime.timedelta(days=1)
Look up timedelta objects in the Python docs: http://docs.python.org/library/datetime.html
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Why is Swift compile time so slow?
...le file (actually one method) that was causing the compiler to go berzek.
Now don't get me wrong. Swift does recompile all your files each time, but the great thing now, is that Apple added real-time compilation feedback over the files it compiles, so Xcode 6 GM now shows which Swift files are bein...
Using jQuery to test if an input has focus
... CSS :hover using the $(#element).hover() method. The only problem is, now that jQuery handles both the form focus() and hover() , when an input has focus then the user moves the mouse in and out, the border goes away.
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Update Eclipse with Android development tools v. 23
I updated Eclipse with the new SDK tools (rev. 23), but now when Eclipse starts I receive the error:
43 Answers
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How to list all tags along with the full message in git?
...to do something more than what this question is asking. But it is good to know that for certain situations the -l is needed.
– still_dreaming_1
Jul 2 '15 at 15:30
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How do I show the value of a #define at compile-time?
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I know that this is a long time after the original query, but this may still be useful.
This can be done in GCC using the stringify operator "#", but it requires two stages.
#define XSTR(x) STR(x)
#define STR(x) #x
The value...
Why do I need to override the equals and hashCode methods in Java?
... hashCode(), let's see what would happen in this particular case where we know that two objects of MyClass are equal if their importantField is equal but we do not override equals().
Override only hashCode
If you only override hashCode then when you call myMap.put(first,someValue) it takes first, ca...
Weighted random numbers
...or is more than a few dozen items long (basically, you have to profile to know if this helps or hinders), then there is an optimisation:
By storing the cumulative weight sum in each item you can use a binary search to pick the item corresponding to the pick weight.
If you do not know the number ...
Learning Ruby on Rails
As it stands now, I'm a Java and C# developer. The more and more I look at Ruby on Rails, the more I really want to learn it.
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