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What’s the best way to check if a file exists in C++? (cross platform)
I have read the answers for What's the best way to check if a file exists in C? (cross platform) , but I'm wondering if there is a better way to do this using standard c++ libs? Preferably without trying to open the file at all.
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How can I get the browser's scrollbar sizes?
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From Alexandre Gomes Blog I have not tried it. Let me know if it works for you.
function getScrollBarWidth () {
var inner = document.createElement('p');
inner.style.width = "100%";
inner.style.height = "200px";
var outer = document.createElement('div');
outer.style.p...
jquery save json data object in cookie
How do I save JSON data in a cookie?
6 Answers
6
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Is there a simple way to remove multiple spaces in a string?
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>>> import re
>>> re.sub(' +', ' ', 'The quick brown fox')
'The quick brown fox'
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When use getOne and findOne methods Spring Data JPA
...entity lazy loading. So to ensure the effective loading of the entity, invoking a method on it is required.
findOne()/findById() is really more clear and simple to use than getOne().
So in the very most of cases, favor findOne()/findById() over getOne().
API Change
From at least, the 2.0 versio...
How to “inverse match” with regex?
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(?!Andrea).{6}
Assuming your regexp engine supports negative lookaheads..
Edit: ..or maybe you'd prefer to use [A-Za-z]{6} in place of .{6}
Edit (again): Note that lookaheads and lookbehinds are generally not the right way to "inverse" a regular expression match. Regexps aren't really s...
Getting the current page
...'t the correct term). I can't find any variable that holds this. But I think it must be held somewhere, since the indicator is able to show which sub-view of the scroll view is currently being displayed.
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Convert a list to a dictionary in Python
...entries conveniently map to a dictionary. Each even element represents the key to the dictionary, and the following odd element is the value
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What is better, adjacency lists or adjacency matrices for graph problems in C++?
...s on the problem.
Adjacency Matrix
Uses O(n^2) memory
It is fast to lookup and check for presence or absence of a specific edge
between any two nodes O(1)
It is slow to iterate over all edges
It is slow to add/delete a node; a complex operation O(n^2)
It is fast to add a new edge O(1)
Adjace...
C# Iterating through an enum? (Indexing a System.Array)
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Anders
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answered Jan 27 '09 at 9:16
Frederik Gheysels...