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Rails ActiveRecord date between

I need to query comments made in one day. The field is part of the standard timestamps, is created_at . The selected date is coming from a date_select . ...
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How to resolve : Can not find the tag library descriptor for “http://java.sun.com/jsp/jstl/core” [du

The Eclipse IDE is showing red underline and when I focus it the tag is : can not find the library descriptor for http://java.sun.com/jsp/jstl/core ...
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How to solve PHP error 'Notice: Array to string conversion in…'

I have a PHP file that tries to echo a $_POST and I get an error, here is the code: 5 Answers ...
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Triggering HTML5 Form Validation

...ocus, if the element is invalid then the corresponding event will be fired and trapped by the second event handler. This one sets the focus back to the element, but that could be quite annoying, I assume you have a better solution for notifying about the errors. Here's a working example of my code...
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What does (x ^ 0x1) != 0 mean?

...expression is false if x == 1. So the test is the same as: if (x != 1) and is therefore (arguably) unnecessarily obfuscated. share | improve this answer | follow ...
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How do you write tests for the argparse portion of a python module? [closed]

... You should refactor your code and move the parsing to a function: def parse_args(args): parser = argparse.ArgumentParser(...) parser.add_argument... # ...Create your parser as you like... return parser.parse_args(args) Then in your main...
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Which maven dependencies to include for spring 3.0?

I am trying to do my first project with Spring 3.0 (and maven). I have been using Spring 2.5 (and primer versions) in quite some projects. Nevertheless I am kinda confused, what modules I have to define as dependencies in my pom.xml. I just want to use the core container functions (beans, core, cont...
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What character encoding should I use for a HTTP header?

...e http://html5boilerplate.com/ for more info) for a Server HTTP-header and am wondering if it is "allowed" per spec. 2 ...
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How to convert a String to CharSequence?

...uence. It simply assigns an instance of String to a CharSequence variable, and since String implements the CharSequence interface, the code works. – João Silva Oct 16 '10 at 12:06 ...
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How to make a HTTP request using Ruby on Rails?

...e) I should make a request to that website (in my case a HTTP GET request) and receive the response. 7 Answers ...