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String concatenation: concat() vs “+” operator
... two object allocations (the result String and its backing char[], neither one redundant), and any number of strings with three allocations (the String[], the result String, and the backing char[], with only the first being redundant). As it is, using StringBuilder will at best require four allocati...
How can I create a temp file with a specific extension with .NET?
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(To quote from the wiki article on the probabilty of a collision:
...one's annual risk of being hit by a
meteorite is estimated to be one
chance in 17 billion [19], that means
the probability is about 0.00000000006
(6 × 10−11), equivalent to the odds of
creating a few tens of tril...
Parse v. TryParse
...nd they are separate implementations with exactly the same code other than one has 'throw ...' and one has 'return false'. I wonder why they aren't consolidated?!
– Greg Beech
Jan 22 '09 at 8:39
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Is there an equivalent of 'which' on the Windows command line?
As I sometimes have path problems, where one of my own cmd scripts is hidden (shadowed) by another program (earlier on the path), I would like to be able to find the full path to a program on the Windows command line, given just its name.
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Check if an element contains a class in JavaScript?
.... as examples - the real strings are all different. I will only be showing one string at a time, not combining any (hence the breaks after each case). I just want it to still work even if the matching class is one of multiple classes on the div.
– daGUY
May 5 '...
The multi-part identifier could not be bound
...to be aware of how to do that properly.
The thing is, explicit joins (the ones that are implemented using the JOIN keyword) take precedence over implicit ones (the 'comma' joins, where the join condition is specified in the WHERE clause).
Here's an outline of your query:
SELECT
…
FROM a, b LE...
What is the “right” way to iterate through an array in Ruby?
... => 0
B => 1
C => 2
I'm not quite sure from your question which one you are looking for.
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What is the difference between PS1 and PROMPT_COMMAND
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You could shorten one of your lines: if git branch &>/dev/null ; then\ . It redirects both stdout and stderr to /dev/null. tldp.org/LDP/abs/html/io-redirection.html
– user184968
Oct 3 '14 at 5:39
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How to remove item from list in C#?
...r filtered = result.Where(f => f.ID != 2); returns all items except the one with ID 2
Detailed answer:
I think .RemoveAll() is very flexible, because you can have a list of item IDs which you want to remove - please regard the following example.
If you have:
class myClass {
public int ID; pub...
Entity Framework - Include Multiple Levels of Properties
...the answer. Let me try this: To include a collection and then a collection one level down: query.Include(e => e.Level1Collection.Select(l1 => l1.Level2Collection)).
– Bob Horn
May 30 '12 at 19:46
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