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How to get unique device hardware id in Android? [duplicate]
...he unique device ID in Android which cannot be changed when performing a phone reset or OS update?
3 Answers
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Invalidating JSON Web Tokens
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I too have been researching this question, and while none of the ideas below are complete solutions, they might help others rule out ideas, or provide further ones.
1) Simply remove the token from the client
Obviously this does nothing for server side security, but it does stop ...
Can “list_display” in a Django ModelAdmin display attributes of ForeignKey fields?
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This causes one query per row displayed in the admin :(
– marcelm
Mar 2 '17 at 11:14
1
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Command to get nth line of STDOUT
...wer of machines these days, they'd probably cope). Generalizing to handle one range is not wholly trivial (for range N..M, you use head -n M | tail -n M-N+1), and generalizing to handle multiple ranges is not possible.
– Jonathan Leffler
Sep 15 '09 at 22:22
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Inheritance and Overriding __init__ in python
...Info(dict):
"""store file metadata"""
def __init__(self, filename=None):
super(FileInfo, self).__init__()
self["name"] = filename
Note the following:
We can directly subclass built-in classes, like dict, list, tuple, etc.
The super function handles tracking down this clas...
What makes a SQL statement sargable?
...r(myDate) = 2008
The SQL optimizer can't use an index on myDate, even if one exists. It will literally have to evaluate this function for every row of the table. Much better to use:
WHERE myDate >= '01-01-2008' AND myDate < '01-01-2009'
Some other examples:
Bad: Select ... WHERE isNull(F...
How to throw std::exceptions with variable messages?
...the base class std::exception can not be constructed thus; you have to use one of the concrete, derived classes.
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What is a “context bound” in Scala?
One of the new features of Scala 2.8 are context bounds. What is a context bound and where is it useful?
4 Answers
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Remove not alphanumeric characters from string
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@AD7six, could you please elaborate as to why one should be using JSON.stringify() when the string is coming from an untrusted source? Is there any security concern not to do so? Thanks!
– jbmusso
Jul 23 '13 at 17:19
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Parsing CSV files in C#, with header
...engine at a file, and bingo - you get back all the entries from that file. One simple operation - great performance!
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