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What is the difference between a.getClass() and A.class in Java?
...e typically emits the following instructions for Integer.getClass():
aload_1
invokevirtual #3; //Method java/lang/Object.getClass:()Ljava/lang/Class;
and the following for Integer.class:
//const #3 = class #16; // java/lang/Integer
ldc_w #3; //class java/lang/Integer
The former would...
How to rename a table in SQL Server?
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To rename a table in SQL Server, use the sp_rename command:
exec sp_rename 'schema.old_table_name', 'new_table_name'
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What is the difference between UTF-8 and ISO-8859-1?
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Unicode is actually 17 planes of 2^16 code points. 0x00_0000 to 0x1F_FFFF. The 17 planes can accommodate 1,114,112 code points. Of these, 2,048 are surrogates, 66 are non-characters, and 137,468 are reserved for private use, leaving 974,530 for public assignment.about 1 million. ...
How to detect if URL has changed after hash in JavaScript
...e that there's no native support for this...
– wasddd_
Nov 14 '18 at 18:33
1
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Histogram Matplotlib
... compute the widths using np.diff, pass the widths to ax.bar and use ax.set_xticks to label the bin edges:
import matplotlib.pyplot as plt
import numpy as np
mu, sigma = 100, 15
x = mu + sigma * np.random.randn(10000)
bins = [0, 40, 60, 75, 90, 110, 125, 140, 160, 200]
hist, bins = np.histogram(x,...
How to copy a collection from one database to another in MongoDB
...h related feature request.
You could do something like:
db.<collection_name>.find().forEach(function(d){ db.getSiblingDB('<new_database>')['<collection_name>'].insert(d); });
Please note that with this, the two databases would need to share the same mongod for this to work.
B...
How do I decode a base64 encoded string?
...ring(Convert.FromBase64String("OBFZDT..."));
string result = m000493(p0, "_p0lizei.");
// result == "gaia^unplugged^Ta..."
with return m0001cd(builder3.ToString()); changed to return builder3.ToString();.
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How to set size for local image using knitr for markdown?
...tion:
Resizing local images
As of knitr 1.12, there is the function include_graphics. From ?include_graphics (emphasis mine):
The major advantage of using this function is that it is portable in the sense that it works for all document formats that knitr supports, so you do not need to think if you...
What are some methods to debug Javascript inside of a UIWebView?
...use it like this: [NSClassFromString(@"WebView") performSelector:@selector(_enableRemoteInspector)]; Remember to remove the call when you build for release!
– rpitting
Apr 3 '12 at 13:58
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Haskell: Converting Int to String
...swered Oct 25 '17 at 5:15
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