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How can I access a JavaScript object which has spaces in the object's key?
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Does somebody know if it is a good or bad practice use spaces in object keys?
– Juan P. Ortiz
Mar 19 '19 at 7:07
1
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Get checkbox value in jQuery
...e you can do something like this:
$("input[type='checkbox']").val();
Or if you have set a class or id for it, you can:
$('#check_id').val();
$('.check_class').val();
However this will return the same value whether it is checked or not, this can be confusing as it is different to the submitted ...
Rails Root directory path?
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In Rails 3 and newer:
Rails.root
which returns a Pathname object. If you want a string you have to add .to_s. If you want another path in your Rails app, you can use join like this:
Rails.root.join('app', 'assets', 'images', 'logo.png')
In Rails 2 you can use the RAILS_ROOT constant, whi...
How to upgrade rubygems
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without sudo if you installed gems as a regular user (installing gems as root is not very nice anyway).
– akostadinov
Sep 6 '16 at 6:53
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Initialize a long in Java
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See Primitive Data Types which says "An integer literal is of type long if it ends with the letter L or l; otherwise it is of type int."
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CSS selector with period in ID
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@Anthony: There isn't a specific reason to put a period in an HTML id attribute. I guess sometimes authors just want to? Maybe in some cases it could be bleed over from the underlying implementation systems that might use periods in the server-side code...
Rounding BigDecimal to *always* have two decimal places
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That does indeed work how I want. Is the difference simply that round() works with significant digits while setScale works with a fixed number of decimal places or is there more to it?
– Brad Mace
Mar 26 '13 at 17:21
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Why an abstract class implementing an interface can miss the declaration/implementation of one of th
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That's because if a class is abstract, then by definition you are required to create subclasses of it to instantiate. The subclasses will be required (by the compiler) to implement any interface methods that the abstract class left out.
F...
What is the idiomatic Go equivalent of C's ternary operator?
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As pointed out (and hopefully unsurprisingly), using if+else is indeed the idiomatic way to do conditionals in Go.
In addition to the full blown var+if+else block of code, though, this spelling is also used often:
index := val
if val <= 0 {
index = -val
}
and if you ...
What is the HMVC pattern?
Reading Kohana's documentation, I found out that the main difference in 3.0 version is that it follows the HMVC pattern instead of MVC as version 2.x does. The page about this in Kohana's docs and the one on wikipedia didn't really give me a clear idea.
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