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How to run a single RSpec test?
...y_spec.rb -e "should be the correct answer"
2019 Update: Rspec2 switched from the 'spec' command to the 'rspec' command.
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Custom Python list sorting
... functools cmp_to_key to have old-style comparison functions work though.
from functools import cmp_to_key
def cmp_items(a, b):
if a.foo > b.foo:
return 1
elif a.foo == b.foo:
return 0
else:
return -1
cmp_items_py3 = cmp_to_key(cmp_items)
alist.sort(cmp_ite...
How can I see which Git branches are tracking which remote / upstream branch?
...ll" is fine if it gets you what you want and you don't have to repeat it.) From the point of view of this question, kubi's answer provides some extraneous information, and if there's more than one remote, it doesn't show everything, but if it meets your needs, by all means use it.
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How to group dataframe rows into list in pandas groupby?
...B [5, 5, 4] [3, 4, 4]
C [6] [4]
This answer was inspired from Anamika Modi's answer. Thank you!
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Hide Utility Class Constructor : Utility classes should not have a public or default constructor
...//not called
}
}
This prevents the default parameter-less constructor from being used elsewhere in your code. Additionally, you can make the class final, so that it can't be extended in subclasses, which is a best practice for utility classes. Since you declared only a private constructor, othe...
How to check if all list items have the same value and return it, or return an “otherValue” if they
... It gets worse when you have one-time iteration like reading from file... So Ani's answer from other thread looks the best.
– Alexei Levenkov
Dec 8 '10 at 18:20
...
Android Bitmap to Base64 String
...yte[] byteArray = byteArrayOutputStream .toByteArray();
to encode base64 from byte array use following method
String encoded = Base64.encodeToString(byteArray, Base64.DEFAULT);
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Using success/error/finally/catch with Promises in AngularJS
...hey also provide exception handling, just like normal code, you can return from a promise or you can throw.
What you'd want in synchronous code is:
try{
try{
var res = $http.getSync("url");
res = someProcessingOf(res);
} catch (e) {
console.log("Got an error!",e);
throw...
Stateless and Stateful Enterprise Java Beans
...tire life, there is no swapping or pooling of instances (it may be evicted from memory after passivation to save resources but that's another story) and maintain conversational state. This means that the instance variables of the bean can keep data relative to the client between method invocations. ...
How to perform element-wise multiplication of two lists?
...
For the benefit of others arriving here from a google search I have included a timeit comparison below.
– paddyg
Nov 8 '16 at 11:10
add a co...