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JavaScript hashmap equivalent

... Hash your objects yourself manually, and use the resulting strings as keys for a regular JavaScript dictionary. After all, you are in the best position to know what makes your objects unique. That's what I do. Example: var key = function(obj){ // Some un...
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What is the use of join() in Python threading?

...t clumsy ascii-art to demonstrate the mechanism: The join() is presumably called by the main-thread. It could also be called by another thread, but would needlessly complicate the diagram. join-calling should be placed in the track of the main-thread, but to express thread-relation and keep it as s...
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Java: parse int value from a char

...So e.g. '0' in ascii is 48, '1' is 49, etc. So if you take '2' - '0' you really just get 50 - 48 = 2. Have a look at an ASCII table in order to understand this principle better. Also, 'x' means get the ascii value of the character in Java. – Kevin Van Ryckegem ...
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How do I check if the Java JDK is installed on Mac?

How do you check if Java SDK is installed on a Mac? 8 Answers 8 ...
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How to delete a file from SD card?

... I think Inner children are not deleted.. you have to delete all inner childs.See my answer below.. – AndroidGeek May 15 '14 at 7:56 2 ...
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Python extending with - using super() Python 3 vs Python 2

Originally I wanted to ask this question , but then I found it was already thought of before... 5 Answers ...
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How to find out if you're using HTTPS without $_SERVER['HTTPS']

...PHP as a Fast-CGI application). Also, Apache 1.x servers (and broken installations) might not have $_SERVER['HTTPS'] defined even if connecting securely. Although not guaranteed, connections on port 443 are, by convention, likely using secure sockets, hence the additional port check. Additional n...
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What's the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__?

... = "function-name"; appeared, where function-name is the name of the lexically-enclosing function. This name is the unadorned name of the function. Note that it is not a macro and it has no special meaning during preprocessing. __func__ was added to C++ in C++11, where it is specified as containi...
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Apply function to all elements of collection through LINQ [duplicate]

...ently started off with LINQ and its amazing. I was wondering if LINQ would allow me to apply a function - any function - to all the elements of a collection, without using foreach. Something like python lambda functions. ...
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Resumable downloads when using PHP to send the file?

...e first thing you need to do is to send the Accept-Ranges: bytes header in all responses, to tell the client that you support partial content. Then, if request with a Range: bytes=x-y header is received (with x and y being numbers) you parse the range the client is requesting, open the file as usua...