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Is it expensive to use try-catch blocks even if an exception is never thrown?
...o program the compiler to do them, reason about and guarantee correctness, etc. It'd be a big pain for something meant to be 'exceptional') But again, in practice you won't notice things like this.
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Import PEM into Java Key Store
... Hi Bruno, thanks for tips. The real use case is to import all entries of /etc/pki/tls/certs/ca-bundle.crt (RHEL/CentOS) in one go. AFAIK, keytool will only import the first entry. I've seen a number of people do this differently but it usually involves invoking keytool multiple times for each cert...
Calling a class function inside of __init__
...results_from_parse
By the way, if you have variables named stat1, stat2, etc., the situation is begging for a tuple:
stats = (...).
So let parse_file return a tuple, and store the tuple in
self.stats.
Then, for example, you can access what used to be called stat3 with self.stats[2].
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Pandoc markdown page break
...tput if the target format can contain raw TeX (i.e., LaTeX, Markdown, Org, etc.).
We can use a simple Lua filter to translate this when targeting a different format. The following works for docx, LaTeX, epub, and light-weight markup.
--- Return a block element causing a page break in the given for...
Reference — What does this symbol mean in PHP?
... @Lotus - I consider it a fun fact. If you're a beginner to PHP, or C++, etc, it seems pretty wacky that ++i and i++ are different enough to work at different speeds. I found it fascinating.
– Peter Ajtai
Dec 9 '10 at 10:47
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Django - what is the difference between render(), render_to_response() and direct_to_template()?
...mplateView), they used to be implemented as functions (direct_to_template, etc). Views implemented as functions, my personal preference, are still supported and that won't change.
– Nick Zalutskiy
Mar 27 '13 at 1:35
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How to align checkboxes and their labels consistently cross-browsers
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Sometimes vertical-align needs two inline (span, label, input, etc...) elements next to each other to work properly. The following checkboxes are properly vertically centered in IE, Safari, FF, and Chrome, even if the text size is very small or large.
They all float next to each other o...
Send attachments with PHP Mail()?
...using it requires to needlessly import another thing to trust (i.e no bugs/etc in the PHPMailer). To not blindly trust one would require one to look at the at least 3155 lines sloc (115.456 kb) of code. Given the alternative purely mail() using answers this seems like a worse tradeoff. The alternati...
Insert a commit before the root commit in Git?
...ids touching the working copy or the index or which branch is checked out, etc.
Create a tree object for an empty directory:
tree=`git hash-object -wt tree --stdin < /dev/null`
Wrap a commit around it:
commit=`git commit-tree -m 'root commit' $tree`
Create a reference to it:
git branch new...
Are there legitimate uses for JavaScript's “with” statement?
...ight you can say var bc2 = context.bezierCurveTo; and then just go bc2(x,x,etc); each time you want to call it. That is quite fast and even less verbose, while with is super slow.
– Jimbo Jonny
Oct 26 '15 at 17:32
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