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How to use `string.startsWith()` method ignoring the case?
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One option is to convert both of them to either lowercase or uppercase:
"Session".toLowerCase().startsWith("sEsSi".toLowerCase());
This is wrong. See: https://stackoverflow.com/a/15518878/14731
Another option is to use String#regionMat...
“unpacking” a tuple to call a matching function pointer
...f values, which will later be used as arguments for a call to a function pointer which matches the stored types.
8 Answers
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How to compare 2 files fast using .NET?
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Make sure to take into account where your files are located. If you're comparing local files to a back-up half-way across the world (or over a network with horrible bandwidth) you may be better off to hash first and send a checksum over the n...
parseInt vs unary plus, when to use which?
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The unary + on the other hand will return NaN if the entire string is non-convertible to a number.
parseInt('2a',10) === 2; //true
parseFloat('2a') === 2; //true
isNaN(+'2a'); //true
As seen in the comment of @Alex K., parseInt and parseFloat will parse by character. This means ...
month name to month number and vice versa in python
I am trying to create a function that can convert a month number to an abbreviated month name or an abbreviated month name to a month number. I thought this might be a common question but I could not find it online.
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Mod of negative number is melting my brain
I'm trying to mod an integer to get an array position so that it will loop round. Doing i %
arrayLength works fine for positive numbers but for negative numbers it all goes wrong.
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What are Aggregates and PODs and how/why are they special?
...oth aggregates and PODs (Plain Old Data) take time and read it. If you are interested just in aggregates, read only the first part. If you are interested only in PODs then you must first read the definition, implications, and examples of aggregates and then you may jump to PODs but I would still rec...
LINQ Aggregate algorithm explained
...regate is that it performs an operation on each element of the list taking into account the operations that have gone before. That is to say it performs the action on the first and second element and carries the result forward. Then it operates on the previous result and the third element and carrie...
C++11 reverse range-based for-loop
...nclude <iostream>
#include <boost/range/adaptor/reversed.hpp>
int main()
{
std::list<int> x { 2, 3, 5, 7, 11, 13, 17, 19 };
for (auto i : boost::adaptors::reverse(x))
std::cout << i << '\n';
for (auto i : x)
std::cout << i << '\n...
How do you round a number to two decimal places in C#?
...per to specify the type of rounding (Round-to-even or Away-from-zero). The Convert.ToInt32() method and its variations use round-to-even. The Ceiling() and Floor() methods are related.
You can round with custom numeric formatting as well.
Note that Decimal.Round() uses a different method than Mat...