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Why does comparing strings using either '==' or 'is' sometimes produce a different result?
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is is identity testing, == is equality testing. what happens in your code would be emulated in the interpreter like this:
>>> a = 'pub'
>>> b = ''.join(['p', 'u', 'b'])
>>> a == b
True
>>> a is ...
Simpler way to put PDB breakpoints in Python code?
... bunch of other options) as standard. One of the first things I do with a new system is pull in a better vimrc...
– Daniel
Aug 6 '14 at 16:19
1
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How do you return the column names of a table?
...mes of a table using SQL Server 2008? i.e. a table contains these columns- id, name, address, country and I want to return these as data.
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How to kill/stop a long SQL query immediately?
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What could the reason
A query cancel is immediate, provided that your attention can reach the server and be processed. A query must be in a cancelable state, which is almost always true except if you do certain operations like call a web service from SQLCLR. If your attention can...
Ruby: extend self
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How to select unique records by SQL
...umns (at least on a DB2), which still will return duplicate values in individual columns.
– Konstantin
Jan 4 '18 at 10:46
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Given a DateTime object, how do I get an ISO 8601 date in string format?
...answered Sep 22 '08 at 14:00
WayneWayne
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Why NSUserDefaults failed to save NSMutableDictionary in iOS?
... {
NSString *value;
}
Then in the implementation of CommentItem, provides two methods:
-(void)encodeWithCoder:(NSCoder *)encoder
{
[encoder encodeObject:value forKey:@"Value"];
}
-(id)initWithCoder:(NSCoder *)decoder
{
self.value = [decoder decodeObjectForKey:@"Value"];
return se...
Is there a command to list all Unix group names? [closed]
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Yes MichaelIT is right the groups command did not list all groups. I asked this because unsure if there is a simple command like groups to lists all groups names or even a swith to it like groups [-a|--all] to list all system groups without doing file scan.
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Is PHP's count() function O(1) or O(n) for arrays?
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