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JavaScript closure inside loops – simple practical example
...ES5.1 solution: forEach
With the relatively widespread availability of the Array.prototype.forEach function (in 2015), it's worth noting that in those situations involving iteration primarily over an array of values, .forEach() provides a clean, natural way to get a distinct closure for every iterat...
Is it better to use std::memcpy() or std::copy() in terms to performance?
...sts that std::copy could not use in my MD5 tests. In the SHA-2 tests, both arrays were created in the same function that called std::copy / memcpy. In my MD5 tests, one of the arrays was passed in to the function as a function parameter.
I did a little bit more testing to see what I could do to mak...
How to get an object's properties in JavaScript / jQuery?
...ption of six primitive types, everything in ECMA-/JavaScript is an object. Arrays; functions; everything is an object. Even most of those primitives are actually also objects with a limited selection of methods. They are cast into objects under the hood, when required. To know the base class name, y...
Input and output numpy arrays to h5py
...5py reduces the file size considerably. So, let's say I have the 2D numpy array named A . How do I save it to an h5py file?
Also, how do I read the same file and put it as a numpy array in a different code, as I need to do manipulations with the array?
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Easiest way to check for an index or a key in an array?
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To check if the element is set (applies to both indexed and associative array)
[ ${array[key]+abc} ] && echo "exists"
Basically what ${array[key]+abc} does is
if array[key] is set, return abc
if array[key] is not set, return nothing
References:
See Parameter Expansion in Bash ma...
Get the first element of an array
I have an array:
39 Answers
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How to read a text file into a list or an array with Python
I am trying to read the lines of a text file into a list or array in python. I just need to be able to individually access any item in the list or array after it is created.
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How to convert JSON to XML or XML to JSON?
... Just FYI, there's a potential issue here. When I was turning an array of xml nodes to json it was making an array in json. But, when I run through an array of xml nodes that have a count of 1, then the json conversion doesn't format an array anymore. An xml array with a single element get...
Any implementation of Ordered Set in Java?
...led NSOrderedSet that acts as Set and its items can be accessed as an Array 's ones.
10 Answers
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Store images in a MongoDB database
... store images in a MongoDB database rather than just text? Can I create an array of images in a MongoDB database? Will it be possible to do the same for videos?
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