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Best data type to store money values in MySQL
...multiplying by 100. If you know the precision of the values it's clear the best option is to use DECIMAL. But if you don't know the precision (as in my examples) then…would FLOAT be appropriate?
– Quinn Comendant
Sep 5 '15 at 2:00
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Function overloading in Javascript - Best practices
What is the best way(s) to fake function overloading in Javascript?
36 Answers
36
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How do I replace whitespaces with underscore?
...will also not preserve repeat delimiters, as split() does not return empty items when using the default "split on whitespace" behavior. That is, if the input is "hello,(6 spaces here)world", this will result in "hello,_world" as output, rather than "hello,______world".
– Flies...
Set android shape color programmatically
... on Vikram's answer, if you are coloring dynamic views, like recycler view items, etc.... Then you probably want to call mutate() before you set the color. If you don't do this, any views that have a common drawable (i.e a background) will also have their drawable changed/colored.
public static voi...
Is null check needed before calling instanceof?
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Specifically, in Item 8, he notes that in equals() methods, one instanceof operator serves two purposes - it verifies that the argument is both non-null and of the correct type. "...[S]o you don't need a separate null check."
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How to use 'cp' command to exclude a specific directory?
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Nice pro-tip! This way you can remove single items easily. Thanks a lot!
– taffit
May 1 '18 at 19:42
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Best practices for large solutions in Visual Studio (2008) [closed]
...aturally, it takes a long time to both open and build, so I am looking for best practices for such beasts. Along the lines of questions I am hoping to get answers to, are:
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Is there a Python caching library?
...y.
It's a Last Recently Used cache, so there is no expiration time for the items in it, but as a fast hack it's very useful.
from functools import lru_cache
@lru_cache(maxsize=256)
def f(x):
return x*x
for x in range(20):
print f(x)
for x in range(20):
print f(x)
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C# elegant way to check if a property's property is null
...ough, in fairness @Daz Lewis is proposing a 4-deep example, since the last item is a KeyValuePair). If something is messing with a Customer object, then I don't see what business it has looking through the Address object-heirarchy. Suppose you later decide that a KeyValuePair wasn't such a great ide...
How to convert an Array to a Set in Java
... threads and join is worse than sequentially streaming through hundreds of items. Only in very few situations does parallel actually bring benefit.
– tkruse
Mar 3 '17 at 8:02
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