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Better techniques for trimming leading zeros in SQL Server?
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SUBSTRING(str_col, PATINDEX('%[^0]%', str_col+'.'), LEN(str_col))
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Can I target all tags with a single selector?
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¯_(ツ)_/¯ "can" != "should". Even so, the Sass/LESS options give you extensibility that vanilla CSS does not. Think of something like font-size: (48px / @index).
– Steve
Jul 21 '16 at...
MySQL: determine which database is selected?
After calling mysql_select_db to grab a database, is there any way to later output the name of the database that is currently selected? This seems very basic but I couldn't find anything on php.net or stackoverflow (all results are for "no database selected").
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Are there strongly-typed collections in Objective-C?
...but you can also add them to your own classes:
@interface GenericsTest<__covariant T> : NSObject
-(void)genericMethod:(T)object;
@end
@implementation GenericsTest
-(void)genericMethod:(id)object {}
@end
Objective-C will behave like it did before with compiler warnings.
GenericsTest<...
Test if string is a number in Ruby on Rails
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Create is_number? Method.
Create a helper method:
def is_number? string
true if Float(string) rescue false
end
And then call it like this:
my_string = '12.34'
is_number?( my_string )
# => true
Extend String Class.
If yo...
Best way to work with dates in Android SQLite [closed]
... int flags = 0;
flags |= android.text.format.DateUtils.FORMAT_SHOW_TIME;
flags |= android.text.format.DateUtils.FORMAT_SHOW_DATE;
flags |= android.text.format.DateUtils.FORMAT_ABBREV_MONTH;
flags |= android.text.format.DateUtils.FORMAT_SHOW_YEAR;
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Maximum length of the textual representation of an IPv6 address?
I want to store the data returned by $_SERVER["REMOTE_ADDR"] in PHP into a DB field, pretty simple task, really. The problem is that I can't find any proper information about the maximum length of the textual representation of an IPv6 address, which is what a webserver provides through $_SERVER...
How can I remove a character from a string using Javascript?
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var mystring = "crt/r2002_2";
mystring = mystring.replace('/r','/');
will replace /r with / using String.prototype.replace.
Alternatively you could use regex with a global flag (as suggested by Erik Reppen & Sagar Gala, below) to replace all o...
How to generate a create table script for an existing table in phpmyadmin?
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@Davos use this, show create table database_name.tablename.
– Fahad Anjum
Apr 20 '18 at 9:21
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How to read a large file - line by line?
...object, Python looks up in the list of object methods a special one called __iter__, which tells it what to do. File objects define this special method to return an iterator over the lines. (Roughly.)
– Katriel
Feb 10 '15 at 12:14
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