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Unioning two tables with different number of columns
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For the null value, this hack worked for me: 'SomeString' as DummyColumn. Basically, you just replace NULL with some value. This also worked when used with groupby.
– Saurabh Jain
Feb 27 at 6:27
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How do you reference a capture group with regex find and replace in Visual Studio 2012, 2013, 2015,
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Some extra help: if you want to replace thing(.*) with thing$18 (adding an '8' directly after the capture) you'll have to use thing${1}8
– Luc Bloom
Jan 10 '18 at 8:58
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How to remove new line characters from a string?
I have a string in the following format
11 Answers
11
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How can I programmatically get the MAC address of an iphone
... to use it
InitAddresses();
GetIPAddresses();
GetHWAddresses();
int i;
NSString *deviceIP = nil;
for (i=0; i<MAXADDRS; ++i)
{
static unsigned long localHost = 0x7F000001; // 127.0.0.1
unsigned long theAddr;
theAddr = ip_addrs[i];
if (theAddr == 0) break;
if (theAddr...
How to check if a String contains only ASCII?
...ue if the character is a letter. But is there a way to quickly find if a String only contains the base characters of ASCII?
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Regex lookahead, lookbehind and atomic groups
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Examples
Given the string foobarbarfoo:
bar(?=bar) finds the 1st bar ("bar" which has "bar" after it)
bar(?!bar) finds the 2nd bar ("bar" which does not have "bar" after it)
(?<=foo)bar finds the 1st bar ("bar" which has "foo" be...
Most efficient way to make the first character of a String lower case?
What is the most efficient way to make the first character of a String lower case?
11 Answers
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Why does C++11 not support designated initializer lists as C99? [closed]
...urmountable problems with this approach; given:
struct X {
int c;
char a;
float b;
};
What order would these functions be called in in c99: struct X foo = {.a = (char)f(), .b = g(), .c = h()}? Surprisingly, in c99:
The order of evaluation of the subexpressions in any initializer i...
Removing all non-numeric characters from string in Python
How do we remove all non-numeric characters from a string in Python?
7 Answers
7
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Remove specific characters from a string in Python
I'm trying to remove specific characters from a string using Python. This is the code I'm using right now. Unfortunately it appears to do nothing to the string.
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