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Changing the selected option of an HTML Select element
...elements. I want to use jQuery to check each option's value against a Javascript var . If one matches, I want to set the selected attribute of that option. How would I do that?
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Why does (“foo” === new String(“foo”)) evaluate to false in JavaScript?
...why you cannot put properties on primitives:
var x = "a";
x.property = 2;
alert(x.property) //undefined
Each time you write x.property, a different boxed String object is created.
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How to detect the OS from a Bash script?
...ve some OS specific aliases so I was looking for a way to determine if the script is running on Mac OS X, Linux or Cygwin .
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Scala: Abstract types vs generics
I was reading A Tour of Scala: Abstract Types . When is it better to use abstract types?
4 Answers
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How is Perl's @INC constructed? (aka What are all the ways of affecting where Perl modules are searc
...d; this is the current directory (which is not necessarily the same as the script's directory). It is missing in Perl 5.26+, and when Perl runs with -T (taint checks enabled).
To change the default path when configuring Perl binary compilation, set the configuration option otherlibdirs:
Configu...
lexers vs parsers
Are lexers and parsers really that different in theory?
5 Answers
5
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Validating parameters to a Bash script
...king if the directories exist at first, so I added that in, completing the script. Also, have addressed issues raised in comments; fixed the regular expression, switched from == to eq.
This should be a portable, POSIX compliant script as far as I can tell; it doesn't use any bashisms, which is actu...
Echo equivalent in PowerShell for script testing
I would like to output variables and values out in a PowerShell script by setting up flags and seeing the data matriculate throughout the script.
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bash: shortest way to get n-th column of output
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Because you seem to be unfamiliar with scripts, here is an example.
#!/bin/sh
# usage: svn st | x 2 | xargs rm
col=$1
shift
awk -v col="$col" '{print $col}' "${@--}"
If you save this in ~/bin/x and make sure ~/bin is in your PATH (now that is something you can ...
“Eliminate render-blocking CSS in above-the-fold content”
...rmance, and so far it's proven extremely successful. Things like deferring scripts worked beautifully, since I already had an in-house version of jQuery's .ready() to defer scripts until the page had loaded fully, all I had to do was inline that particular function and move the full scripts to the...