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How to check whether a Storage item is set?

How can I check if an item is set in localStorage ? Currently I am using 13 Answers 1...
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Is there an equivalent of 'which' on the Windows command line?

As I sometimes have path problems, where one of my own cmd scripts is hidden (shadowed) by another program (earlier on the path), I would like to be able to find the full path to a program on the Windows command line, given just its name. ...
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Reversing a linked list in Java, recursively

I have been working on a Java project for a class for a while now. It is an implementation of a linked list (here called AddressList , containing simple nodes called ListNode ). The catch is that everything would have to be done with recursive algorithms. I was able to do everything fine sans one ...
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Using .NET, how can you find the mime type of a file based on the file signature not the extension

I am looking for a simple way to get a mime type where the file extension is incorrect or not given, something similar to this question only in .Net. ...
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Why should I not wrap every block in “try”-“catch”?

I have always been of the belief that if a method can throw an exception then it is reckless not to protect this call with a meaningful try block. ...
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How to Find And Replace Text In A File With C#

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Suggestions for debugging print stylesheets?

I've recently been working on a print stylesheet for a website, and I realized that I was at a loss for effective ways to tweak it. It's one thing to have a reload cycle for working on the on-screen layout: ...
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How to get a password from a shell script without echoing

I have a script that automates a process that needs access to a password protected system. The system is accessed via a command-line program that accepts the user password as an argument. ...
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Why do most fields (class members) in Android tutorial start with `m`?

I know about camel case rules, but I'm confused with this m rule. What does it stand for? I'm a PHP developer. "We" use first letters of variables as indication of type, like 'b' for boolean, 'i' for integer and so on. ...
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How to get the nth element of a python list or a default if not available

I'm looking for an equivalent in python of dictionary.get(key, default) for lists. Is there any one liner idiom to get the nth element of a list or a default value if not available? ...