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How do I implement basic “Long Polling”?
...ed to be running them locally)
Then, in Javascript, you request the above file (msg_srv.php), and wait for a response. When you get one, you act upon the data. Then you request the file and wait again, act upon the data (and repeat)
What follows is an example of such a page.. When the page is loa...
Java 8 Iterable.forEach() vs foreach loop
...ritical when you consider that some sequences (like reading the lines in a file) may have side-effects, or you may have an infinite sequence."
Might execute in parallel, which is a horrible, horrible thing for all but the 0.1% of your code that needs to be optimized. Any parallel code has to be tho...
Haskell testing workflow
...tion
You can integrate your tests and benchmarks directly into your cabal file by adding sections for them, and masking them behind flags so that they don't make it so that every user of your library has to have access to (and want to use for themselves) the exact version of the testing tools you'v...
Assign pandas dataframe column dtypes
I want to set the dtype s of multiple columns in pd.Dataframe (I have a file that I've had to manually parse into a list of lists, as the file was not amenable for pd.read_csv )
...
Approximate cost to access various caches and main memory?
...es for example).
Additionally, this page has some details on clock cycles etc. The second link served the following numbers:
Core i7 Xeon 5500 Series Data Source Latency (approximate) [Pg. 22]
local L1 CACHE hit, ~4 cycles ( 2.1 - 1.2 ns )
local L...
Center HTML Input Text Field Placeholder
...or it to work. Or add important! to your CSS rule if you're using external files.
– Behdad
Oct 26 '15 at 11:41
It look...
What is the JSF resource library for and how should it be used?
...lot of examples on the web which use it as follows with the common content/file type css , js and img (or image ) as library name depending on the tag used:
...
What are Maven goals and phases and what is their difference?
...hed to that phase.
When you create a plugin execution in your Maven build file and you only specify the goal then it will bind that goal to a given default phase. For example, the jaxb:xjc goal binds by default to the generate-resources phase. However, when you specify the execution you can also ...
Managing relationships in Laravel, adhering to the repository pattern
While creating an app in Laravel 4 after reading T. Otwell's book on good design patterns in Laravel I found myself creating repositories for every table on the application.
...
Postgres: clear entire database before re-creating / re-populating from bash script
...need a backup of the database dumped onto disk in a plain-text .sql script file format, you could connect pg_dump and pg_restore directly together over a pipe.
To drop and recreate tables, you could use the --clean command-line option for pg_dump to emit SQL commands to clean (drop) database object...