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Check if bash variable equals 0 [duplicate]

... Looks like your depth variable is unset. This means that the expression [ $depth -eq $zero ] becomes [ -eq 0 ] after bash substitutes the values of the variables into the expression. The problem here is that the -eq operator is incorrectly used as an opera...
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How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method

... The tilde operator isn't actually part of jQuery at all - it's a bitwise NOT operator in JavaScript itself. See The Great Mystery of the Tilde(~). You are getting strange numbers in your experiments because you are performing a bitwise logica...
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Can local storage ever be considered secure? [closed]

...eb application that will function offline for long periods. In order for this to be viable I cannot avoid saving sensitive data (personal data but not the kind of data you would only store hashed) in local storage. ...
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Best way to store password in database [closed]

... You are correct that storing the password in a plain-text field is a horrible idea. However, as far as location goes, for most of the cases you're going to encounter (and I honestly can't think of any counter-examples) storing the representation of a password in the database is the proper...
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Determine if Python is running inside virtualenv

Is it possible to determine if the current script is running inside a virtualenv environment? 16 Answers ...
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Why use prefixes on member variables in C++ classes

...eading underscore. A leading underscore before a capital letter in a word is reserved. For example: _Foo _L are all reserved words while _foo _l are not. There are other situations where leading underscores before lowercase letters are not allowed. In my specific case, I found the _L happen...
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Formula px to dp, dp to px android

... Note: The widely used solution above is based on displayMetrics.density. However, the docs explain that this value is a rounded value, used with the screen 'buckets'. Eg. on my Nexus 10 it returns 2, where the real value would be 298dpi (real) / 160dpi (default...
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Learning to write a compiler [closed]

... Big List of Resources: A Nanopass Framework for Compiler Education ¶ Advanced Compiler Design and Implementation $ An Incremental Approach to Compiler Construction ¶ ANTLR 3.x Video Tutorial Basics of Compiler Design Building ...
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What is Func, how and when is it used

What is Func<> and what is it used for? 7 Answers 7 ...
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API vs. Webservice [closed]

What is the difference between a webservice and an API? Is the difference more than the protocol used to transfer data? thanks. ...