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What is the best way to determine the number of days in a month with JavaScript?
...th(2, 1999)); // February in a non-leap year.
console.log(daysInMonth(2, 2000)); // February in a leap year.
Day 0 is the last day in the previous month. Because the month constructor is 0-based, this works nicely. A bit of a hack, but that's basically what you're doing by subtracting 32.
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Very large matrices using Python and NumPy
... I've found that it's capable of handling matrices which are quite large (10000 x 10000) easily, but begins to struggle with anything much larger (trying to create a matrix of 50000 x 50000 fails). Obviously, this is because of the massive memory requirements.
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Error: The processing instruction target matching “[xX][mM][lL]” is not allowed
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I had a similar issue with 50,000 rdf/xml files in 5,000 directories (the Project Gutenberg catalog file). I solved it with riot (in the jena distribution)
the directory is cache/epub/NN/nn.rdf (where NN is a number)
in the directory above the directory...
In PHP, how do you change the key of an array element?
...opied" without being modified. E.g., if there's one array that contains 10'000 elements and consumes 40MB memory, copying it will consume memory that's needed for storing 10'000 only references to already existing values rather than copies of values, so if 1 array consumes 40MB, its copy might consu...
Split large string in n-size chunks in JavaScript
I would like to split a very large string (let's say, 10,000 characters) into N-size chunks.
22 Answers
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Fixed point vs Floating point number
...d represent would be 99999.99999 and the smallest non-zero number would be 00000.00001. Every bit of code that processes such numbers has to have built-in knowledge of where the decimal point is.
A floating point number does not reserve a specific number of bits for the integer part or the fraction...
What is the difference between JDK dynamic proxy and CGLib?
...ub methods:
cglib JDK proxy
creation 804.000 (1.899) 973.650 (1.624)
invocation 0.002 (0.000) 0.005 (0.000)
The time is noted in nanoseconds with standard deviation in braces. You can find more details on the benchmark in Byte Buddy's ...
How to check if an object is a generator object in python?
...ng module.
from typing import Generator, Iterator
g = (i for i in range(1_000_000))
print(type(g))
print(isinstance(g, Generator))
print(isinstance(g, Iterator))
result:
<class 'generator'>
True
True
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Random color generator
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Use getRandomColor() in place of "#0000FF":
function getRandomColor() {
var letters = '0123456789ABCDEF';
var color = '#';
for (var i = 0; i < 6; i++) {
color += letters[Math.floor(Math.random() * 16)];
}
return color;
}
fun...
How to check if a float value is a whole number
...to find the largest cube root that is a whole number, that is less than 12,000.
13 Answers
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