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Combining two expressions (Expression)
...t;(body, newParameter);
}
[TestMethod]
public void ExpressionText()
{
string text = "test";
Expression<Func<Coco, bool>> expr1 = p => p.Item1.Contains(text);
Expression<Func<Coco, bool>> expr2 = q => q.Item2.Contains(text);
Expression<Func<Coco, ...
How to use GROUP_CONCAT in a CONCAT in MySQL
.... I always use this separator, because it's impossible to find it inside a string, therefor it's unique.
There is no problem having two A's, you identify only the value. Or you can have one more colum, with the letter, which is even better.
Like this :
SELECT id,GROUP_CONCAT(DISTINCT(name)), GROUP_...
How to convert list of tuples to multiple lists?
...xs, ys
if __name__ == '__main__':
from timeit import timeit
setup_string='''\
N = 2000000
xs = list(range(1, N))
ys = list(range(N+1, N*2))
zs = list(zip(xs, ys))
from __main__ import t1, t2, t3
'''
print(f'zip:\t\t{timeit('t1(zs)', setup=setup_string, number=1000)}')
print(f'append...
Min/Max of dates in an array?
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To number convertion applied not for string '2011/06/25', but for new Date('2011/06/25'). Number(new Date('2011/06/25'))===1308949200000. Code is tested in Chrome, IE, FF
– Andrew D.
Aug 22 '11 at 6:07
...
Generate random password string with requirements in javascript
I want to generate a random string that has to have 5 letters from a-z and 3 numbers.
18 Answers
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Using member variable in lambda capture list inside a member function
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The solution might make an unnecessary extra copy of grid though it probably gets optimized out. Shorter and better is: auto& tmp = grid; etc.
– Tom Swirly
Aug 10 '15 at 17:49
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Simplest way to detect a mobile device in PHP
... a mobile browser in PHP.
The code detects a user based on the user-agent string by preg_match()ing words that are found in only mobile devices user-agent strings after hundreds of tests. It has 100% accuracy on all current mobile devices and I'm currently updating it to support more mobile devices...
How do I get class name in PHP?
In Java, we can get class name with String className = MyClass.class.getSimpleName();
10 Answers
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Reset C int array to zero : the fastest way?
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memset (from <string.h>) is probably the fastest standard way, since it's usually a routine written directly in assembly and optimized by hand.
memset(myarray, 0, sizeof(myarray)); // for automatically-allocated arrays
memset(myarray, ...
Parse email content from quoted reply
...olution will not work.
Likewise if the email client uses a different date string, or doesn't include a date string the regex will fail.
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