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valueOf() vs. toString() in Javascript
... x for its Number representation, since the first operand returns a string from [[DefaultValue]], it does string concatenation.
If you want to guarantee that toString is called for string concatenation, use an array and the .join("") method.
(ActionScript 3.0 slightly modifies the behavior of +, h...
Fast stable sorting algorithm implementation in javascript
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It is possible to get a stable sorting from a non-stable sort function.
Before sorting you get the position of all the elements.
In your sort condition, if both elements are equal, then you sort by the position.
Tada! You've got a stable sort.
I've written an a...
Script to get the HTTP status code of a list of urls?
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I don't know why script from above andswer always get me 000 in the output, but when I run command only once without loop it works...
– Karol F
Aug 9 '16 at 7:08
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Changing Java Date one hour back
...e java.time types, call the conversion methods. Here is example code going from an Instant or a ZonedDateTime to a java.util.Date.
java.util.Date date = java.util.Date.from( instant );
…or…
java.util.Date date = java.util.Date.from( zdt.toInstant() );
About java.time
The java.time frame...
How to get the first element of the List or Set? [duplicate]
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useful if you just want to get anything from the set, as quickly as possible
– HaydenKai
Sep 13 '16 at 23:10
12
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SVG fill color transparency / alpha?
... with using that. The CSS3 syntax is in CSS3 Color, which is one step away from becoming a w3c recommendation. SVG 1.1 doesn't reference CSS3 Color because it wasn't available at the time, a future version of SVG probably will.
– Erik Dahlström
May 19 '11 at 8...
Looping through localStorage in HTML5 and JavaScript
...ere a reason I should use parse and not eval? I'm using eval now to get it from a string, but is parse better/faster?
– Oscar Godson
Jun 29 '10 at 21:15
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An efficient way to transpose a file in Bash
...hape function in APL, comes with BSDs and OS X, but it should be available from package managers on other platforms.
A second option is to use Ruby:
ruby -e'puts readlines.map(&:split).transpose.map{|x|x*" "}'
A third option is to use jq:
jq -R .|jq -sr 'map(./" ")|transpose|map(join(" "))[...
Disable/turn off inherited CSS3 transitions
...t sets the transition time to 0, which effectively prevents the transition from being noticeable. The use of the a.noTransition selector is simply to provide a specific selector for the elements without transitions.
Edited to note that @Frédéric Hamidi's answer, using all (for Opera, at least) ...
Convert number strings with commas in pandas DataFrame to float
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If you're reading in from csv then you can use the thousands arg:
df.read_csv('foo.tsv', sep='\t', thousands=',')
This method is likely to be more efficient than performing the operation as a separate step.
You need to set the locale first:...