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Linq style “For Each” [duplicate]
...h involves iterating through the original collection twice. I'd prefer a standard foreach loop any day: less typing, more readable and better performance: foreach (var x in someValues) list.Add(x + 1);
– LukeH
Oct 2 '09 at 13:35
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Creating an empty file in C#
...a difference is if the thread were aborted between the call to File.Create and the call to Dispose. If that race condition exists, I suspect it would also exist in the using version, if the thread were aborted at the very end of the File.Create method, just before the value was returned...
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How to combine two strings together in PHP?
...ays to concatenate two strings together.
Use the concatenation operator . (and .=)
In PHP . is the concatenation operator which returns the concatenation of its right and left arguments
$data1 = "the color is";
$data2 = "red";
$result = $data1 . ' ' . $data2;
If you want to append a string to anot...
How to verify a user's password in Devise
...se gem in rails. User password stored on my db which is encrypted_password and i am trying to find user by password, but I don't understand how to match password from form and encrypted_password in my db.
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How do I get SUM function in MySQL to return '0' if no values are found?
...nformation:
Given three tables (one with all numbers, one with all nulls, and one with a mixture):
SQL Fiddle
MySQL 5.5.32 Schema Setup:
CREATE TABLE foo
(
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
val INT
);
INSERT INTO foo (val) VALUES
(null),(1),(null),(2),(null),(3),(null),(4),(n...
What do I return if the return type of a method is Void? (Not void!)
... a function has to be Void?
Use return null. Void can't be instantiated and is merely a placeholder for the Class<T> type of void.
What's the point of Void?
As noted above, it's a placeholder. Void is what you'll get back if you, for example, use reflection to look at a method with a ...
What does [object Object] mean?
I am trying to alert a returned value from a function and I get this in the alert:
9 Answers
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How can I filter lines on load in Pandas read_csv function?
How can I filter which lines of a CSV to be loaded into memory using pandas? This seems like an option that one should find in read_csv . Am I missing something?
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Where can I get Google developer key
I am working on Google API like chat, contacts and so on...
I am stuck on developer_key as mentioned in gdata doc.
16 Ans...
Type hinting a collection of a specified type
...eous list (or other collection) for the purpose of type hinting in PyCharm and other IDEs?
5 Answers
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