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Check whether a string is not null and not empty
...ils
I like to use Apache commons-lang for these kinds of things, and especially the StringUtils utility class:
import org.apache.commons.lang.StringUtils;
if (StringUtils.isNotBlank(str)) {
...
}
if (StringUtils.isBlank(str)) {
...
}
...
What is the difference between 'content' and 'text'
...ose that there would be a difference for a non-text response. But where is all this documented? Note that the linked document does state:
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Does using final for variables in Java improve garbage collection?
...ive objects.
The JVM uses a mark-sweep GC algorithm, which has to examine all the live refereces in the GC "root" locations (like all the objects in the current call stack). Each live object is "marked" as being alive, and any object referred to by a live object is also marked as being alive.
Afte...
why is plotting with Matplotlib so slow?
...
First off, (though this won't change the performance at all) consider cleaning up your code, similar to this:
import matplotlib.pyplot as plt
import numpy as np
import time
x = np.arange(0, 2*np.pi, 0.01)
y = np.sin(x)
fig, axes = plt.subplots(nrows=6)
styles = ['r-', 'g-', 'y-...
Python Pandas Error tokenizing data
... noted
To solve it, try specifying the sep and/or header arguments when calling read_csv. For instance,
df = pandas.read_csv(fileName, sep='delimiter', header=None)
In the code above, sep defines your delimiter and header=None tells pandas that your source data has no row for headers / column ...
Capturing console output from a .NET application (C#)
How do I invoke a console application from my .NET application and capture all the output generated in the console?
8 Answ...
Check if option is selected with jQuery, if not select a default
...ot work in Internet Explorer 8, so @gradbot has it right, as this works in all Browsers.
– Sorcy
Jul 18 '12 at 11:15
add a comment
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What is the purpose of static keyword in array parameter of function like “char s[static 10]”?
...Note that the C Standard does not require the compiler to diagnose when a call to the function does not meet these requirements (i.e., it is silent undefined behaviour).
The second declaration simply declares someArray (not someArray's elements!) as const, i.e., you can not write someArray=someOthe...
jQuery Validate Plugin - How to create a simple custom rule?
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got it to work by inserting a variable that is called result before the addmethod, seems the true, false values are registering properly within the success function
– Mikelangelo
May 27 '10 at 9:19
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How do you share constants in NodeJS modules?
...mply need to require the file, and not even save your return value.
But really, you shouldn't do that. Keeping things properly encapsulated is a good thing. You have the right idea already, so keep doing what you're doing.
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