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Check if a String contains numbers Java
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To explain: .* means any character from 0 to infinite occurence, than the \\d+ (double backslash I think is just to escape the second backslash) and \d+ means a digit from 1 time to infinite.
– Giudark
Sep 29 '1...
Python - use list as function parameters
...ely I am just going to add a simple but complete example.
def some_func(a_char, a_float, a_something):
print a_char
params = ['a', 3.4, None]
some_func(*params)
>> a
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Convert string to List in one line?
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List<string> result = names.Split(new char[] { ',' }).ToList();
Or even cleaner by Dan's suggestion:
List<string> result = names.Split(',').ToList();
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Split string every nth character?
Is it possible to split a string every nth character?
16 Answers
16
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Remove the last three characters from a string
I want to remove last three characters from a string:
14 Answers
14
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Can a C++ enum class have methods?
... mouse_event_middle_up,
mouse_event_wheel
};
static const char* ToStr (const type::LowLevelMouseEvent::Enum& event)
{
switch (event) {
case mouse_event_unknown: return "unknown";
case mouse_event_unimplemented: return "unimplemented"...
Replace non-numeric with empty string
...project. A field in our DB to hold a phone number is set to only allow 10 characters. So, if I get passed "(913)-444-5555" or anything else, is there a quick way to run a string through some kind of special replace function that I can pass it a set of characters to allow?
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@try - catch block in Objective-C
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All work perfectly :)
NSString *test = @"test";
unichar a;
int index = 5;
@try {
a = [test characterAtIndex:index];
}
@catch (NSException *exception) {
NSLog(@"%@", exception.reason);
NSLog(@"Char at index %d cannot be found", index);
NSLog(@"Max inde...
Haskell: Lists, Arrays, Vectors, Sequences
...st. The best example of lists screwing up performance tends to come from [Char] which the prelude has aliased as String. Char lists are convient, but tend to run on the order of 20 times slower than C strings, so feel free to use Data.Text or the very fast Data.ByteString. I'm sure there are othe...
Convert Elixir string to integer or float
...k String.to_integer/1 and String.to_float/1.
Hint: See also to_atom/1,to_char_list/1,to_existing_atom/1for other conversions.
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