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In C#, why is String a reference type that behaves like a value type?
... decided to cut out the middleman (struct handling was inefficient in .NET 1.0, and it was natural to follow Java, in which strings were already defined as a reference, rather than primitive, type. Plus, if string were a value type then converting it to object would require it to be boxed, a needles...
What is the difference between “px”, “dip”, “dp” and “sp”?
... 240 360
Density (factor of baseline 160) 1.0 1.5
Density-independent pixels 240 240
(“dip” or “dp” or “dps”)
Scale-independent pixels
(“sip” or “sp”) Depend...
Performance surprise with “as” and nullable types
...out a dozen instructions. This needed to be really efficient back in .NET 1.0 when boxing was common.
Casting to int? takes a lot more work. The value representation of the boxed integer is not compatible with the memory layout of Nullable<int>. A conversion is required and the code is tri...
Turn a number into star rating display using jQuery and CSS
... <meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Star Rating</title>
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.9.0/css/all.min.css" rel...
Are list-comprehensions and functional functions faster than “for loops”?
...l version
dt_p = time.time() - t0_p
f_vs_p = dt_p / dt_f
if f_vs_p >= 1.0:
print('Time benefit of functional progamming:', f_vs_p,
'times as fast for', n_points, 'points')
else:
print('Time penalty of functional programming:', 1 / f_vs_p,
'times as slow for', n_poi...
What kind of Garbage Collection does Go use?
...upports finalizers on objects
there is no support for weak references
Go 1.0 garbage collector:
same as Go 1.1, but instead of being mostly precise the garbage collector is conservative. The conservative GC is able to ignore objects such as []byte.
Replacing the GC with a different one is cont...
Providing white space in a Swing GUI
...], 2, 0, 1, 2
, GridBagConstraints.BOTH, 0.33, 1.0);
contentPane.add(gridBagPanel);
cardPanel = new JPanel(new CardLayout(hGap, vGap));
cardPanel.setBorder(
BorderFactory.createTitledBorder("CardLayout"));
cardPanel.setOpaque(t...
How can I set the aspect ratio in matplotlib?
...he matplotlib version you are running? I have recently had to upgrade to 1.1.0, and with it, add_subplot(111,aspect='equal') works for me.
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HTTP status code for a partial successful request
... for you. If you do, you could do something like so:
<?xml version="1.0" encoding="utf-8" ?>
<D:multistatus xmlns:D='DAV:'>
<D:response>
<D:user>user-123</D:user>
<D:status>success</D:status>
</D:response>
<D:resp...
Maven: how to override the dependency added by a library
...used. This can be useful if your project A includes an external project B v1.0 that includes another external project C v1.0. Sometimes it happens that a security breach is found in project C v1.0 which is corrected in v1.1, but the developers of B are slow to update their project to use v1.1 of C. ...