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cleanest way to skip a foreach if array is empty [duplicate]
...anguage. PHP variable can store anything, that's why is_array, is_numeric, etc are needed functions.
– Daniel Wu
Nov 22 '19 at 5:41
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Perform .join on value in array of objects
...rscore.js which has tons of utilities for dealing with arrays, collections etc.
With underscore you could do this easily with one line of code:
_.pluck(arr, 'name').join(', ')
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Execution of Python code with -m option or not
...sion 3.4):
python -Im pdb
usage: pdb.py [-c command] ... pyfile [arg] ...
etc...
from the docs:
-I
Run Python in isolated mode. This also implies -E and -s. In isolated mode sys.path contains neither the script’s directory nor the user’s site-packages directory. All PYTHON* environme...
Python Progress Bar
... your needs by customizing: bar progress symbol '#', bar size, text prefix etc.
import sys
def progressbar(it, prefix="", size=60, file=sys.stdout):
count = len(it)
def show(j):
x = int(size*j/count)
file.write("%s[%s%s] %i/%i\r" % (prefix, "#"*x, "."*(size-x), j, count))
...
How to Apply Gradient to background view of iOS Swift App
...en you add a sublayer it may sit over all your other items, labels, image, etc. To overcome this create another view that sits below everything and set its constraints to that of the container you want the gradient in. Then set the gradient to be applied to this view. Subviews will then be inserted ...
What are POD types in C++?
...l built-in data types (e.g. int, char, float, long, unsigned char, double, etc.) and all aggregation of POD data. Yes, it's a recursive definition. ;)
To be more clear, a POD is what we call "a struct": a unit or a group of units that just store data.
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Append an object to a list in R in amortized constant time, O(1)?
... up to about a kB per node for my applications. I hold on to large arrays, etc.
– Ana Nimbus
Feb 1 at 6:23
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How can I create a link to a local file on a locally-run web page?
...st assume you're referring to a file on your own PC. This means file:///C:/etc is a shortcut for file://localhost/C:/etc.
These files will still open in your browser and that is good
Your browser will respond to these files the same way they'd respond to the same file anywhere on the internet. The...
Entity Framework: One Database, Multiple DbContexts. Is this a bad idea? [closed]
...example shared entity types and their passing from one context to another, etc. Generally it is possible, it can make your design much cleaner and separate different functional areas but it has its costs in additional complexity.
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Java 8 forEach with index [duplicate]
...
Since you are iterating over an indexable collection (lists, etc.), I presume that you can then just iterate with the indices of the elements:
IntStream.range(0, params.size())
.forEach(idx ->
query.bind(
idx,
params.get(idx)
)
)
;
The resulting code is si...