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Map.clear() vs new Map : Which one will be better? [duplicate]
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I thought Creating object in java more expensive in terms of memory,so it is better to you go with .clear(),so you are using same object instead of creating new one
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Is there a way to 'uniq' by column?
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How to get duplicate items from a list using LINQ? [duplicate]
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How to see the CREATE VIEW code for a view in PostgreSQL?
...here to look up pg_get_viewdef (how to remember that!!), so searched for a more memorable command... and got it:
\d+ viewname
You can see similar sorts of commands by typing \? at the pgsql command line.
Bonus tip: The emacs command sql-postgres makes pgsql a lot more pleasant (edit, copy, paste...
How to set a default value for an existing column
...If anything, they are relaxations; the opposite of a constraint! They make more things valid, not fewer.
– Roman Starkov
May 11 '13 at 12:06
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Default value of a type at Runtime [duplicate]
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Adding two numbers concatenates them instead of calculating the sum
...his shortcut. I know that actually parsing a string into a number requires more code but at least the code clearly matches the intention.
– Si Kelly
May 10 '17 at 12:33
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Why can I initialize a List like an array in C#?
...ent IEnumerable (again, preferably IEnumerable<T>) and create one or more Add() methods:
public class SomeCollection<T> : IEnumerable<T>
{
// implement Add() methods appropriate for your collection
public void Add(T item)
{
// your add logic
}
// i...
What's the equivalent of Java's Thread.sleep() in JavaScript? [duplicate]
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Prevent Caching in ASP.NET MVC for specific actions using an attribute
...d still cache the results, just wouldn't use the cached results. Should be more efficient on the client to disable caching via response headers.
– Josh
Dec 26 '13 at 20:30
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