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What is the meaning and difference between subject, user and principal?
...clarify "User - subset of principal"? If John is the subject and "account #123" is his principal, the user is who? Are there two John's? Since Genus > Species > Individual is increasingly specific, John (user) should be more specific than John (subject). Or am I missing something?
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Why are only final variables accessible in anonymous class?
...s = new int[1];
Runnable r = new Runnable() { public void run() { res[0] = 123; } };
r.run();
System.out.println(res[0]);
// ...
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How to compare type of an object in Python?
...1" instead of "Nope". How to get around this ?
– dig_123
Dec 14 '14 at 11:04
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How to show google.com in an iframe?
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The reason for this is, that Google is sending an "X-Frame-Options: SAMEORIGIN" response heade...
Iterate over a Javascript associative array in sorted order
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You cannot iterate over them directly, but you can find all the keys and then just sort them.
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Creating .pem file for APNS?
...elopment Push Services” > Export “Apple Development Push Services ID123″. Save this as apns-dev-cert.p12 file somewhere you can access it. There is no need to enter a password.
The next command generates the cert in Mac’s Terminal for PEM format (Privacy Enhanced Mail Security Certificate...
if/else in a list comprehension
... ternary operator ?: that exists in other languages. For example:
value = 123
print(value, 'is', 'even' if value % 2 == 0 else 'odd')
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How to rename with prefix/suffix?
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In Bash and zsh you can do this with Brace Expansion. This simply expands a list of items in ...
JavaScript file upload size validation
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Using jquery:
<form action="upload" enctype="multipart/form-data" method="post">
U...
NoSql vs Relational database
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Not all data is relational. For those situations, NoSQL can be helpful.
With that said, NoSQ...