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Cartesian product of multiple arrays in JavaScript
...adding flat and flatMap to the language!
Example
This is the exact example from your question:
let output = cartesian([1,2],[10,20],[100,200,300]);
Output
This is the output of that command:
[ [ 1, 10, 100 ],
[ 1, 10, 200 ],
[ 1, 10, 300 ],
[ 1, 20, 100 ],
[ 1, 20, 200 ],
[ 1, 20, 300 ],
...
Are there any open source C libraries with common data structures? [closed]
...he gnu portability library.
It's distributed as source code.
This list is from its module list, which includes a TON of other things. One interesting one is "c-stack: Stack overflow handling, causing program exit."
list
array-list
carray-list
linked-list
avltree-list
rbtree-list
linkedhash-list
...
Cast a Double Variable to Decimal
...cimal, but doesn't a decimal carry more precision? (i.e. much like casting from an int to a double can be implicit.)
– user2821275
Aug 14 '14 at 18:35
4
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How to open a file using the open with statement
...on. I've written the following code to read a list of names (one per line) from a file into another file while checking a name against the names in the file and appending text to the occurrences in the file. The code works. Could it be done better?
...
Trim string in JavaScript?
...
For those browsers who does not support trim(), you can use this polyfill from MDN:
if (!String.prototype.trim) {
(function() {
// Make sure we trim BOM and NBSP
var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
String.prototype.trim = function() {
return th...
Why do we copy then move?
... @user2030677: But that is a completely different example. In the example from your question you always end up holding a copy in data!
– Andy Prowl
May 23 '13 at 23:01
...
When you exit a C application, is the malloc-ed memory automatically freed?
...tack, delete static variables, etc, you would eventually crash your system from memory leaks or worse.
Interesting aside to this, crashes/breaks in Ubuntu, and I suspect all other modern OSes, do have problems with "handled' resources. Sockets, files, devices, etc. can remain "open" when a program ...
Finding duplicates in O(n) time and O(1) space
Input: Given an array of n elements which contains elements from 0 to n-1, with any of these numbers appearing any number of times.
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Why are Standard iterator ranges [begin, end) instead of [begin, end]?
... begin i end
and you immediately see that the range of elements from begin to i contains the elements A and B while the range of elements from i to end contains the elements C and D. Dereferencing i gives the element right of it, that is the first element of the second sequence.
Even the...
Python coding standards/best practices [closed]
...
Tabs or Spaces? From PEP8: Spaces are the preferred indentation method. Tabs should be used solely to remain consistent with code that is already indented with tabs.
– The Demz
Apr 8 '14 at 16:41
...