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C++ Structure Initialization
... Really bad idea: add one member to your address and you'll never know of all the places that create an address and now do not initialize your new member.
– mystery_doctor
May 7 '19 at 6:13
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Why cast unused return values to void?
...s the motivation for this, to explicitly show other "developers" that you know this function returns but you're explicitly ignoring it.
This is a way to ensure that where necessary error codes are always handled.
I think for C++ this is probably the only place that I prefer to use C-style casts to...
UIView Hide/Show with animation
...n your app and add #import <QuartzCore/QuartzCore.h> to your header. Now you can do one of the following:
1) set button.layer.shouldRasterize = YES; and then use the alpha animation code that Michail provided in his answer. This will prevent the layers from blending weirdly, but has a slight ...
Representing Monetary Values in Java [closed]
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It can be useful to people arriving here by search engines to know about JodaMoney: http://www.joda.org/joda-money/.
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Tool for generating railroad diagram used on json.org [closed]
...n Online Railroad Diagram Generator. It creates SVG syntax diagrams, also known as railroad diagrams, from context-free grammars specified in EBNF. You can copy the SVG code or take screen shots.
You have to type in the grammar and it'll make the diagram.
For example, to create the first railroad ...
How to parse JSON data with jQuery / JavaScript?
...//and pass downloaded data
var json = $.parseJSON(data);
//now json variable contains data in json format
//let's display a few items
for (var i=0;i<json.length;++i)
{
$('#results').append('<div class="name">'+json[i].name+'</>');
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Syntax for creating a two-dimensional array
...s. The rows and the elements in each row should be separated by a commas.
Now observe the statement: you can get there are 3 rows and 5 columns, so the JVM creates 3 * 5 = 15 blocks of memory. These blocks can be individually referred ta as:
marks[0][0] marks[0][1] marks[0][2] marks[0][3] mark...
belongs_to through associations
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I'd like to know myself. Everything I tried fired 3 selects. You can specify a "-> { joins :something }" lambda on an association. The join is fired but subsequently another select anyway. I wasn't able to tune this up.
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How to scroll HTML page to given anchor?
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This is a clean solution, however as of now it doesn't allow any tweaking, it does a hard scroll. There is an experimental parameter scrollIntoViewOptions that has a behavior: "smooth" option, but it is currently compatible with Firefox only.
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Working with huge files in VIM
...lines) in the HUGEFILE and write it all to a new file.
HUGEFILE.new will now be your edited file, you can delete the original HUGEFILE.
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follo...