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How to securely save username/password (local)?
...st going to verify/validate the entered user name and password, use the Rfc2898DerivedBytes class (also known as Password Based Key Derivation Function 2 or PBKDF2). This is more secure than using encryption like Triple DES or AES because there is no practical way to go from the result of RFC2898De...
How to set the current working directory? [duplicate]
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825
Try os.chdir
os.chdir(path)
Change the current working directory to pat...
Replace first occurrence of string in Python
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2 Answers
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Appending HTML string to the DOM
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247
Use insertAdjacentHTML if it's available, otherwise use some sort of fallback. insertAdjacentH...
How to determine if one array contains all elements of another array
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a = [5, 1, 6, 14, 2, 8]
b = [2, 6, 15]
a - b
=> [5, 1, 14, 8]
b - a
=> [15]
(b - a).empty?
=> false
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What is meant by Ems? (Android TextView)
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edited Jun 24 '12 at 14:05
answered Jun 24 '12 at 13:36
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Using new line(\n) in string and rendering the same in HTML
... Kling
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answered Dec 20 '11 at 10:19
SamichSamich
26.7k44 gold bad...
How to escape a pipe char in a code statement in a markdown table?
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As of March 2017 using escaped pipes is much easier: \| See other answers.
If you remove the backticks (`), using the | hack works
a | r
------------|-----
`a += x;` | r1
a |= y; | r2
and produce...
Why do we copy then move?
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edited May 23 '17 at 12:02
Community♦
111 silver badge
answered May 23 '13 at 22:05
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MongoDB with redis
...ere are a few examples of concrete usage of Redis on top of MongoDB.
Pre-2.2 MongoDB does not have yet an expiration mechanism. Capped collections cannot really be used to implement a real TTL. Redis has a TTL-based expiration mechanism, making it convenient to store volatile data. For instance, u...