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Idiomatic way to wait for multiple callbacks in Node.js
Suppose you need to do some operations that depend on some temp file. Since
we're talking about Node here, those operations are obviously asynchronous.
What is the idiomatic way to wait for all operations to finish in order to
know when the temp file can be deleted?
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What is the difference between UTF-8 and Unicode?
I have heard conflicting opinions from people - according to the Wikipedia UTF-8 page.
15 Answers
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How to post pictures to instagram using API
I am building a php application which needs to post the user uploaded picture directly to Instagram, but after a quick search i found that there is no such function in the API :( and it feels weird... because they should provide one. I am not sure if there is any other way (except the apps for andro...
Check whether a path is valid in Python without creating a file at the path's target
I have a path (including directory and file name).
I need to test if the file-name is a valid, e.g. if the file-system will allow me to create a file with such a name.
The file-name has some unicode characters in it.
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design a stack such that getMinimum( ) should be O(1)
This is one of an interview question. You need to design a stack which holds an integer value such that getMinimum() function should return the minimum element in the stack.
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How to find out the MySQL root password
I cannot figure out my MySQL root password; how can I find this out? Is there any file where this password is stored?
17 A...
Read values into a shell variable from a pipe
I am trying to get bash to process data from stdin that gets piped into, but no luck. What I mean is none of the following work:
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The program can't start because libgcc_s_dw2-1.dll is missing
I have created a simple program in C++ with Code::Blocks.
16 Answers
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How do I parse JSON with Ruby on Rails? [duplicate]
I'm looking for a simple way to parse JSON, extract a value and write it into a database in Rails.
12 Answers
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How to make an Android Spinner with initial text “Select One”?
I want to use a Spinner that initially (when the user has not made a selection yet) displays the text "Select One". When the user clicks the spinner, the list of items is displayed and the user selects one of the options. After the user has made a selection, the selected item is displayed in the Spi...