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Force line-buffering of stdout when piping to tee
...her words, as long as your printf argument ends with a newline, you can expect the line to be printed instantly. This does not appear to hold when using a pipe to redirect to tee .
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Javascript Thousand Separator / string format [duplicate]
... answer below was wrong. There is a built in function for this, which is exactly what kaiser suggests below: toLocaleString
So you can do:
(1234567.89).toLocaleString('en') // for numeric input
parseFloat("1234567.89").toLocaleString('en') // for string input
The function implemen...
sed in-place flag that works both on Mac (BSD) and Linux
...tion of sed todo in-place editing without backups that works both on Linux and Mac? While the BSD sed shipped with OS X seems to need sed -i '' … , the GNU sed Linux distributions usually come with interprets the quotes as empty input file name (instead of the backup extension), and needs ...
A numeric string as array key in PHP
... the value with a string key doesn't work, though. Add this line to your example: echo $data['12'];. It will give the error, "Notice: Undefined offset: 12 in - on line 5".
– L S
May 29 '16 at 9:47
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Dynamically select data frame columns using $ and a character value
...different column names and I want to be able to loop over each of them to extract that column from a data.frame. For example, consider the data set mtcars and some variable names stored in a character vector cols . When I try to select a variable from mtcars using a dynamic subset of cols , ne...
Converting String to Int with Swift
...se a formula to calculate acceleration. However, since the values in the text boxes are string, I am unable to convert them to integers.
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What is the best way to test for an empty string in Go?
...r enough. It is more a matter of personal taste and about clarity.
Russ Cox writes in a golang-nuts thread:
The one that makes the code clear.
If I'm about to look at element x I typically write
len(s) > x, even for x == 0, but if I care about
"is it this specific string" I tend to wri...
Python multiprocessing PicklingError: Can't pickle
I am sorry that I can't reproduce the error with a simpler example, and my code is too complicated to post. If I run the program in IPython shell instead of the regular Python, things work out well.
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Why do people still use primitive types in Java?
Since Java 5, we've had boxing/unboxing of primitive types so that int is wrapped to be java.lang.Integer , and so and and so forth.
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Are Javascript arrays sparse?
That is, if I use the current time as an index into the array:
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