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Check if Internet Connection Exists with Javascript? [duplicate]
...lished and provides neat events like up and down, which you can bind to in order to update your UI.
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What does Serializable mean?
...en the answer, but I would like to add an example for those who need it in order to explain the idea:
Let's say you have a class person like the following:
public class Person implements java.io.Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
public ...
How to sort a HashSet?
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A HashSet does not guarantee any order of its elements. If you need this guarantee, consider using a TreeSet to hold your elements.
However if you just need your elements sorted for this one occurrence, then just temporarily create a List and sort that:
Se...
How can I convert a zero-terminated byte array to string?
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What if your byte array is in the reverse order aka little endian?
– Sir
Nov 22 '17 at 0:39
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How does tuple comparison work in Python?
...(1,2) is false because the type is not the same).
Collections that support order comparison are ordered the same as their first unequal elements (for example, [1,2,x] <= [1,2,y] has the same value as x <= y). If a corresponding element does not exist, the shorter collection is ordered first (f...
Why is x86 ugly? Why is it considered inferior when compared to others? [closed]
... These interdependencies make it difficult to do things like instruction reordering on the chip, because the artifacts and semantics of those interdependencies must be preserved for each instruction.
For example, most x86 integer add & subtract instructions modify the flags register. After pe...
Understanding REST: Verbs, error codes, and authentication
...requires the entire resource, so you'd have to send all user attributes in order to comply with HTTP (and therefore with HATEOAS REST). Rather, to simply change the password one should use PATCH or POST.
– Lawrence Dol
Mar 18 '14 at 1:41
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Rename a dictionary key
... old name key; and without iterating through dict key/value?
In case of OrderedDict, do the same, while keeping that key's position.
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T-SQL: Deleting all duplicate rows but keeping one [duplicate]
...e AS (
SELECT[foo], [bar],
row_number() OVER(PARTITION BY foo, bar ORDER BY baz) AS [rn]
FROM TABLE
)
DELETE cte WHERE [rn] > 1
Play around with it and see what you get.
(Edit: In an attempt to be helpful, someone edited the ORDER BY clause within the CTE. To be clear, you can order ...
How to enable PHP short tags?
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Most lileky in /etc/php5/apache2/php.ini
– Benjamin Crouzier
Apr 4 '13 at 19:51
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