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Assigning a variable NaN in python without numpy
...= nan
False
>>> import math
>>> math.isnan(nan)
True
Before Python 3.5, one could use float("nan") (case insensitive).
Note that checking to see if two things that are NaN are equal to one another will always return false. This is in part because two things that are "not a numbe...
How do I byte-compile everything in my .emacs.d directory?
...
A little note: for me that didn't worked until I removed all an according «.elc» files. It just told something like «Done, 0 files comiled, α files skipped».
– Hi-Angel
Jan 12 '15 at 5:57
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Generate a random double in a range
... you will always get an infinite value in return. You might want to check for Double.valueOf(rangeMax-rangeMin).isInfinite().
– lre
Apr 7 '14 at 10:55
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Is Enabling Double Escaping Dangerous?
I have an ASP.NET MVC application with a route that allows searching for stuff via /search/.
4 Answers
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Return from lambda forEach() in java
I am trying to change some for-each loops to lambda forEach() -methods to discover the possibilities of lambda expressions. The following seems to be possible:
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How to write one new line in Bitbucket markdown?
...rks, please chime in at the link below or anywhere else so they change the format to something more common. bitbucket.org/site/master/issues/7396/…
– mikijov
Dec 7 '15 at 5:10
27...
How to deserialize a list using GSON or another JSON library in Java?
...ince subclasses of fully specified generic types retain the generic type information.
– ColinD
Dec 10 '10 at 7:30
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Difference between local and global indexes in DynamoDB
...ing GSI you are required to add a provisioned throughput per index and pay for it.
More detailed information about the differences can be found in the GSI announcement
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Math.random() versus Random.nextInt(int)
...s both more efficient and less biased than Math.random() * n" from the Sun forums post that Gili linked to:
Math.random() uses Random.nextDouble() internally.
Random.nextDouble() uses Random.next() twice to generate a double that has approximately uniformly distributed bits in its mantiss...
Does Redis persist data?
...tence . Basically you lose the guaranteed persistence when you increase performance by using only in-memory storing. Imagine a scenario where you INSERT into memory, but before it gets persisted to disk lose power. There will be data loss.
Redis supports so-called "snapshots". This means that it wi...