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How is pattern matching in Scala implemented at the bytecode level?
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The low level can be explored with a disassembler but the short answer is that it's a bunch of if/elses where the predicate depends on the pattern
case Sum(l,r) // instance of check followed by fetching the two arguments and assigning to two variables l a...
sort object properties and JSON.stringify
... (their creation order?). When I do JSON.stringify() on the array and save it, a diff shows the properties getting listed in different orders, which is annoying when trying to merge the data further with diff and merging tools.
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How do I list all cron jobs for all users?
...l let me view all of a *NIX system's scheduled cron jobs at once? I'd like it to include all of the user crontabs, as well as /etc/crontab , and whatever's in /etc/cron.d . It would also be nice to see the specific commands run by run-parts in /etc/crontab .
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How to perform a mysqldump without a password prompt?
I would like to know the command to perform a mysqldump of a database without the prompt for the password.
13 Answers
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Why JSF calls getters multiple times
... depending on whether the component is an input or output component (learn it here). However, this count can get up (much) higher when used in iterating JSF components (such as <h:dataTable> and <ui:repeat>), or here and there in a boolean expression like the rendered attribute. JSF (spe...
What is an unsigned char?
In C/C++, what an unsigned char is used for? How is it different from a regular char ?
17 Answers
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What is %2C in a URL?
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Check out http://www.asciitable.com/
Look at the Hx, (Hex) column; 2C maps to ,
Any unusual encoding can be checked this way
+----+-----+----+-----+----+-----+----+-----+
| Hx | Chr | Hx | Chr | Hx | Chr | Hx | Chr |
+----+-----+----+-----+----+--...
How to minify php page html output?
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Consider the following link to minify Javascript/CSS files: https://github.com/mrclay/minify
HTML
Tell Apache to deliver HTML with GZip - this generally reduces the response size by about 70%. (If you use Apache, the module configuring gzip depends on your version: Apache 1.3 uses mod_gzip whi...
iOS 7: UITableView shows under status bar
The first screen of my application is a UITableViewController without a navigation bar, which means that the content flows under the status bar so there's a lot of text collisions. I've adjusted both the properties for Under top bars and Adjust scroll view insets which do actually stop it from...
How to write to an existing excel file without overwriting data (using pandas)?
I use pandas to write to excel file in the following fashion:
11 Answers
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