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Array.Copy vs Buffer.BlockCopy
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Since the parameters to Buffer.BlockCopy are byte-based rather than index-based, you're more likely to screw up your code than if you use Array.Copy, so I would only use Buffer.BlockCopy in a performance-critical section of my code.
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How is mime type of an uploaded file determined by browser?
...dden), and then if not found there, we defer to the system registry.
// Finally, we scan a secondary hard-coded list to catch types that we can
// deduce but that we also want to allow the OS to override.
The hard-coded lists come a bit earlier in the file: https://cs.chromium.org/chromium/src/net/...
What's the best name for a non-mutating “add” method on an immutable collection?
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In situations like that, I usually go with Concat. That usually implies to me that a new object is being created.
var p = listA.Concat(listB);
var k = listA.Concat(item);
share...
Rollback to last git commit
...e newly added contents and files which are already staged (so added to the index) then you use:
git reset --hard
If you want to remove also your latest commit (is the one with the message "blah") then better to use:
git reset --hard HEAD^
To remove the untracked files (so new files not yet add...
In Postgresql, force unique on combination of two columns
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Does this add an index for a and an index for c independently? Because I need to quickly find based on a sometimes, and quickly find based on c sometimes.
– CMCDragonkai
Sep 16 '19 at 13:08
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The case against checked exceptions
...a read-only list we need to implement only two methods: size() and get(int index).
This example WidgetList class reads some fixed-size objects of type Widget (not shown) from a file:
class WidgetList extends AbstractList<Widget> {
private static final int SIZE_OF_WIDGET = 100;
privat...
Understanding checked vs unchecked exceptions in Java
...ceptions, such as trying to access an object through a null reference; and indexing exceptions, such as attempting to access an array element through an index that is too large or too small.
There's also an important bit of information in the Java Language Specification:
The checked exception clas...
Generate random int value from 3 to 6
...details check this: https://www.techonthenet.com/sql_server/functions/rand.php
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CSS container div not getting height
...verflow: hidden;
}
This will force the container to respect the height of all elements within it, regardless of floating elements.
http://jsfiddle.net/gtdfY/3/
UPDATE
Recently, I was working on a project that required this trick, but needed to allow overflow to show, so instead, you can use a pseud...
How to select only date from a DATETIME field in MySQL?
... I think you need to be carefull with that because it will not use an index on the ColumnName
– d0x
Jul 1 '15 at 9:03
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