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cannot load such file — bundler/setup (LoadError)
... (in my case, Ubuntu 14.04) sudo can't run rvm.
– Farfromunique
Jun 1 '16 at 23:46
1
On my macOS ...
Total number of items defined in an enum
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From the previous answers just adding code sample.
class Program
{
static void Main(string[] args)
{
int enumlen = Enum.GetNames(typeof(myenum)).Length;
Console.Write(enumlen);
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Coarse-grained vs fine-grained
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From Wikipedia (granularity):
Granularity is the extent to which a
system is broken down into small
parts, either the system itself or its
description or observation. It is the
extent to which a larger entity is
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Rethrowing exceptions in Java without losing the stack trace
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this is what I was looking for, especially the version from the first comment where you can pass your own message
– Csa77
Apr 14 '19 at 19:31
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In php, is 0 treated as empty?
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From a linguistic point of view empty has a meaning of without value. Like the others said you'll have to use isset() in order to check if a variable has been defined, which is what you do.
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Sequelize.js delete query?
...this is the first search result on Google, and people are also discouraged from asking questions that have already been asked it seems like the accepted answer should get updated... but that's probably more of a site wide issue.
– Rojuinex
Jun 19 '16 at 20:14
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Finding the average of a list
... the average called mean. An example with the list you provided would be:
from statistics import mean
l = [15, 18, 2, 36, 12, 78, 5, 6, 9]
mean(l)
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Is there any difference between “foo is None” and “foo == None”?
...link changed, unless you were interested in how to call external functions from python
– Pat
May 4 '12 at 20:39
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Java array reflection: isArray vs. instanceof
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I recently ran into an issue upgrading a Groovy application from JDK 5 to JDK 6. Using isArray() failed in JDK6:
MissingMethodException:
No signature of sun.reflect.generics.reflectiveObjects.GenericArrayTypeImpl.isArray() ...
Changing to instanceof Object[] fixed this.
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How to escape the % (percent) sign in C's printf?
... always, always print it using
printf("%s", c)
to prevent an embedded % from causing problems [memory violations, segfault, etc]
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