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Check if character is number?
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You could use comparison operators to see if it is in the range of digit characters:
var c = justPrices[i].substr(commapos+2,1);
if (c >= '0' && c <= '9') {
// it is a number
} else {
// it isn't
}
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Best way to reverse a string
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public static string Reverse( string s )
{
char[] charArray = s.ToCharArray();
Array.Reverse( charArray );
return new string( charArray );
}
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How to keep one variable constant with other one changing with row in excel
...out that you can toggle relative addressing for a formula in the currently selected cells with these keyboard shortcuts:
Windows: f4
Mac: CommandT
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How do function pointers in C work?
... class:
typedef struct String_Struct* String;
struct String_Struct
{
char* (*get)(const void* self);
void (*set)(const void* self, char* value);
int (*length)(const void* self);
};
char* getString(const void* self);
void setString(const void* self, char* value);
int lengthString(const...
Does C have a “foreach” loop construct?
...de *(item) = (list); (item); (item) = (item)->next)
int
main(int argc, char *argv[])
{
list_node list[] = {
{ .next = &list[1], .data = "test 1" },
{ .next = &list[2], .data = "test 2" },
{ .next = NULL, .data = "test 3" }
};
FOR_EACH(item, list)
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How can I remove non-ASCII characters but leave periods and spaces using Python?
...h a .txt file. I want a string of the text from the file with no non-ASCII characters. However, I want to leave spaces and periods. At present, I'm stripping those too. Here's the code:
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How do I convert between big-endian and little-endian values in C++?
...nsigned __int64 _byteswap_uint64(unsigned __int64 value);
8 bit numbers (chars) don't need to be converted.
Also these are only defined for unsigned values they work for signed integers as well.
For floats and doubles it's more difficult as with plain integers as these may or not may be in the h...
Simple Digit Recognition OCR in OpenCV-Python
...de a small code in OpenCV. It does following things:
It loads the image.
Selects the digits ( obviously by contour finding and applying constraints on area and height of letters to avoid false detections).
Draws the bounding rectangle around one letter and wait for key press manually. This time we...
Why is the Windows cmd.exe limited to 80 characters wide?
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It isn't. You can right click the title bar, select properties, and in the "Layout" tab alter the screen buffer size (line width and scrollback) and the window size (viewport size). If you started cmd from a shortcut, you can save these settings for future sessions.
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How do I count the number of occurrences of a char in a String?
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Guava equivalent: int count = CharMatcher.is('.').countIn("a.b.c.d"); ...As answered by dogbane in a duplicate question.
– Jonik
Aug 12 '13 at 17:00
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