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How to validate date with format “mm/dd/yyyy” in JavaScript?
...sValidDate(dateString)
{
// First check for the pattern
if(!/^\d{1,2}\/\d{1,2}\/\d{4}$/.test(dateString))
return false;
// Parse the date parts to integers
var parts = dateString.split("/");
var day = parseInt(parts[1], 10);
var month = parseInt(parts[0], 10);
va...
Array extension to remove object by value
...
As of Swift 2, this can be achieved with a protocol extension method.
removeObject() is defined as a method on all types conforming
to RangeReplaceableCollectionType (in particular on Array) if
the elements of the collection are Equatabl...
How to determine the longest increasing subsequence using dynamic programming?
...
OK, I will describe first the simplest solution which is O(N^2), where N is the size of the collection. There also exists a O(N log N) solution, which I will describe also. Look here for it at the section Efficient algorithms.
I will assume the indices of the array are from 0 to N - 1...
How to log request and response body with Retrofit-Android?
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92
I used setLogLevel(LogLevel.FULL).setLog(new AndroidLog("YOUR_LOG_TAG")), it helped me.
UPDATE. ...
Memoization in Haskell?
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259
We can do this very efficiently by making a structure that we can index in sub-linear time.
B...
Is it possible to GROUP BY multiple columns using MySQL?
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296
GROUP BY col1, col2, col3
...
Algorithms based on number base systems? [closed]
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edited Mar 20 '11 at 7:13
Darius Bacon
14.1k55 gold badges4848 silver badges5252 bronze badges
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Ruby max integer
... big they can be.
If you are looking for the machine's size, i.e. 64- or 32-bit, I found this trick at ruby-forum.com:
machine_bytes = ['foo'].pack('p').size
machine_bits = machine_bytes * 8
machine_max_signed = 2**(machine_bits-1) - 1
machine_max_unsigned = 2**machine_bits - 1
If you are look...
What is the C++ function to raise a number to a power?
...
Philipp
1,76644 gold badges2525 silver badges3939 bronze badges
answered May 10 '09 at 19:20
Joey RobertJoey Robert
...