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Should I use Java's String.format() if performance is important?
...e to build Strings all the time for log output and so on. Over the JDK versions we have learned when to use StringBuffer (many appends, thread safe) and StringBuilder (many appends, non-thread-safe).
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Access properties file programmatically with Spring?
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here is a question, how is this different from mine, and has two more votes AND posted second...
– Zoidberg
Nov 20 '09 at 16:07
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Creating multiline strings in JavaScript
...ral, namely template literals. They have many features, variable interpolation among others, but most importantly for this question, they can be multiline.
A template literal is delimited by backticks:
var html = `
<div>
<span>Some HTML here</span>
</div>
`;
(Note...
JavaScript data grid for millions of rows [closed]
I need to present a large number of rows of data (ie. millions of rows) to the user in a grid using JavaScript.
19 Answers
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Ruby, Difference between exec, system and %x() or Backticks
...either true, false or nil. In the example the date was printed through the IO object of STDIN. The method will return true if the process exited with a zero status, false if the process exited with a non-zero status and nil if the execution failed.
Another side effect is that the global variable $?...
Difference between fmt.Println() and println() in Go
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println is an built-in function (into the runtime) which may eventually be removed, while the fmt package is in the standard library, which will persist. See the spec on that topic.
For language developers it is handy to have a println without dependen...
Can I use Objective-C blocks as properties?
...ng the same block in several places use a type def
typedef void(^MyCompletionBlock)(BOOL success, NSError *error);
@property (nonatomic) MyCompletionBlock completion;
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Plot smooth line with PyPlot
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For this example spline works well, but if the function is not smooth inherently and you want to have smoothed version you can also try:
from scipy.ndimage.filters import gaussian_filter1d
ysmoothed = gaussian_filter1d(y, sigma=2)
plt.plot(x, ysmoothed)
plt.show()
if you i...
How to open a file for both reading and writing?
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@JossefHarush Note that the documentation for a states 'on some Unix systems, means that all writes append to the end of the file regardless of the current seek position'. In this case the f.seek(0) won't work as expected. I just fell foul of this on Linux.
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error: writable atomic property cannot pair a synthesized setter/getter with a user defined setter/g
... had the same problem and after doing a bit of research, here is my conclusion about this issue:
The compiler warns you about a @property that you declared as atomic (i.e. by omitting the nonatomic keyword), yet you provide an incomplete implementation of how to synchronize access to that property....