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Extract a substring from a string in Ruby using a regular expression
How can I extract a substring from within a string in Ruby?
5 Answers
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Convert LocalDate to LocalDateTime or java.sql.Timestamp
...ant.now() ) // Writes an `Instant` to database.
To retrieve that moment from datbase:
myResultSet.getObject( … , Instant.class ) // Instantiates a `Instant`
To adjust the wall-clock time to that of a particular time zone.
instant.atZone( z ) // Instantiates a `ZonedDateTime`
LocalDateTi...
How to redirect output of an already running process [duplicate]
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See Redirecting Output from a Running Process.
Firstly I run the command cat > foo1 in one session and test that data from stdin is copied to the file. Then in another session I redirect the output.
Firstly find the PID of the process:
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CSS @font-face - what does “src: local('☺')” mean?
I'm using @font-face for the first time and downloaded a font-kit from fontsquirrel
3 Answers
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What is the largest TCP/IP network port number allowable for IPv4?
...hat netstat shows combined with B)some earlier windows versions only going from 1024-5000 for dynamic ports.And even then, who knows if that ever even happened,since no program has ever bothered to report to anybody that it couldn't get a dynamic port, neither has windows.So it's a thoretical proble...
Programmatically get the cache line size?
...t sysconf(3).
sysconf (_SC_LEVEL1_DCACHE_LINESIZE)
You can also get it from the command line using getconf:
$ getconf LEVEL1_DCACHE_LINESIZE
64
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How to return a 200 HTTP Status Code from ASP.NET MVC 3 controller
I am writing an application that is accepting POST data from a third party service.
5 Answers
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Any reason not to use '+' to concatenate two strings?
...ome cases, but other implementations can't, so programmers are discouraged from relying on this.) ''.join is the right way to do this.
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Expert R users, what's in your .Rprofile? [closed]
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Here is mine. It won't help you with the coloring but I get that from ESS and Emacs...
options("width"=160) # wide display with multiple monitors
options("digits.secs"=3) # show sub-second time stamps
r <- getOption("repos") # hard code the US rep...
How to send HTTP request in java? [duplicate]
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You can use java.net.HttpUrlConnection.
Example (from here), with improvements. Included in case of link rot:
public static String executePost(String targetURL, String urlParameters) {
HttpURLConnection connection = null;
try {
//Create connection
URL url = ne...