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How many double numbers are there between 0.0 and 1.0?

This is something that's been on my mind for years, but I never took the time to ask before. 6 Answers ...
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Rails raw SQL example

How can I convert this code to raw sql and use in rails? Because When I deploy this code in heroku,there is a request timeout error.I think this will be faster if I use raw sql. ...
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AngularJS browser autofill workaround by using a directive

When submitting a form in AngularJS and use the browser remember password functionality, and in a subsequent login attempt you let the browser fill in the login form with the username and password, the $scope model won't be changed based on the autofill. ...
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How to show “Done” button on iPhone number pad

There is no "Done" button on the number pad. When a user finishes entering numeric information in a text field, how can I make the number pad disappear? ...
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How to run an EXE file in PowerShell with parameters with spaces and quotes

How do you run the following command in PowerShell? 19 Answers 19 ...
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How can I detect if a browser is blocking a popup?

Occasionally, I've come across a webpage that tries to pop open a new window (for user input, or something important), but the popup blocker prevents this from happening. ...
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Using boolean values in C

C doesn't have any built-in boolean types. What's the best way to use them in C? 18 Answers ...
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Is errno thread-safe?

In errno.h , this variable is declared as extern int errno; so my question is, is it safe to check errno value after some calls or use perror() in multi-threaded code. Is this a thread safe variable? If not, then whats the alternative ? ...
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AngularJS: how to implement a simple file upload with multipart form?

I want to do a simple multipart form post from AngularJS to a node.js server, the form should contain a JSON object in one part and an image in the other part, (I'm currently posting only the JSON object with $resource) ...
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How to find index of list item in Swift?

I am trying to find an item index by searching a list . Does anybody know how to do that? 22 Answers ...