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What are the differences between NP, NP-Complete and NP-Hard?
...ner. Decidable problems have to result in a definitive yes or no answer in order to be considered to be decidable. The Halting Problem does not have a definitive yes or now answer since an arbitrary answer might throw any solution into a loop.
– rjzii
Dec 13 '0...
Python: Find in list
...ilter(fulfills_some_condition, lst)
in Python 2. Here you can see higher-order functions at work. In Python 3, filter doesn't return a list, but a generator-like object.
Finding the first occurrence
If you only want the first thing that matches a condition (but you don't know what it is yet), it...
Sort array of objects by string property value
...y their value that you pass:
function dynamicSort(property) {
var sortOrder = 1;
if(property[0] === "-") {
sortOrder = -1;
property = property.substr(1);
}
return function (a,b) {
/* next line works with strings and numbers,
* and you may want to cu...
Vim: apply settings on files in directory
...ount. BTW, my version is implemented to be triggered before mu-template in order to set project-specific variables before expanding templates (which is quite useful to fetch the current project root directory and trim it from the pathnames expanded)
– Luc Hermitte
...
How to convert Java String into byte[]?
...pected this answer to become so popular. I have now expanded the answer in order to "deserve" the upvotes. Hopefully it's an improvement.
– Stewart
Oct 14 '15 at 11:13
...
Download a file from NodeJS Server using Express
...
Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
Array.push() if does not exist?
...: Computes the union of the passed-in arrays: the list of unique items, in order, that are present in one or more of the arrays.
_.union([1, 2, 3], [101, 2, 1, 10], [2, 1]);
=> [1, 2, 3, 101, 10]
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Django, creating a custom 500/404 error page
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You don't need to import the handlers here in order to override them.
– funkotron
Nov 30 '16 at 15:46
1
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When to use symbols instead of strings in Ruby?
...e, composed of characters, but immutable. A string, on the contrary, is an ordered container for characters, whose contents are allowed to change.
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TortoiseSVN icons not showing up under Windows 7
...oiseCVS icons. This is because the overlay icons are used in alphabetical order. Again, at your own risk (editing the registry may blow up your computer, yada, yada, yada -- and if you are reading Stack Overflow and using Windows and haven't edited the registry, you are a rare beast indeed), feel f...