Tutorial by Examples: e

Some times you need to debug python code which is executed by another process and and in this cases rpdb comes in handy. rpdb is a wrapper around pdb that re-routes stdin and stdout to a socket handler. By default it opens the debugger on port 4444 Usage: # In the Python file you want to debu...

--- person_table: - &person001 fname: homer lname: simpson role: dad age: 33 - &person002 fname: marge lname: simpson role: mom age: 34 - &person003 fname: pe...

--- person_table: - &person001 fname: homer lname: simpson role: dad age: 33 - &person002 fname: marge lname: simpson role: mom age: 34 - &person003 fname: pe...

--- person_table: - &person001 fname: homer lname: simpson role: dad age: 33 - &person002 fname: marge lname: simpson role: mom age: 34 - &person003 fname: pe...

@Provider public class IllegalArgumentExceptionMapper implements ExceptionMapper<IllegalArgumentException> { @Override public Response toResponse(IllegalArgumentException exception) { return Response.serverError().entity("Invalid input: " + exception.getMessage(...

add: add the specified files on the next commit addremove: add all new files, delete all missing files backout: reverse effect of earlier changeset commit, ci: commit the specified files or all outstanding changes copy, cp: mark files as copied for the next commit forge...

annotate, blame: show changeset information by line for each file bisect: subdivision search of changesets cat: output the current or given revision of files diff: diff repository (or selected files) grep: search for a pattern in specified files and revisions log, history: show revision histo...

archive: create an unversioned archive of a repository revision bundle: create a changegroup file clone: make a copy of an existing repository export: dump the header and diffs for one or more changesets graft: copy changes from other branches onto the current branch incoming: show new change...

bookmarks, bookmark: create a new bookmark or list existing bookmarks branch: set or show the current branch name branches: list repository named branches config, showconfig, debugconfig: show combined config settings from all hgrc files files: list tracked files help: show help for a given t...

bookmarks, bookmark: create a new bookmark or list existing bookmarks branch: set or show the current branch name tag: add one or more tags for the current or given revision update, up, checkout, co: update working directory (or switch revisions)

FNR contains the number of the input file row being processed. In this example you will see awk starting on 1 again when starting to process the second file. Example with one file $ cat file1 AAAA BBBB CCCC $ awk '{ print FNR }' file1 1 2 3 Example with two files $ cat file1 AAAA BBBB...

If you want to create an instance of an inner nested class you need to provide a class object of the enclosing class as an extra parameter with Class#getDeclaredConstructor. public class Enclosing{ public class Nested{ public Nested(String a){ System.out.println("Constru...

In Scala (in contrast to Java and most other languages), if is an expression instead of a statement. Regardless, the syntax is identical: if(x < 1984) { println("Good times") } else if(x == 1984) { println("The Orwellian Future begins") } else { println("Po...

In case of stackable modification, Scala arranges classes and traits in a linear order to determine method call hierarchy, which is known as linearization. The linearization rule is used only for those methods that involve method invocation via super(). Let's consider this by an example: class Shap...

Create a new repository or clone an existing one. Create a new branch called gh-pages without any history $ git checkout --orphan gh-pages # ensure you are in the correct directory then, # remove all files from the old working tree $ git rm -rf Add an index.html file to the root of t...

1. Add a platform target iOS: $ ionic platform add ios Android: $ ionic platform add android Windows: $ ionic platform add windows 2. Build your app iOS: $ ionic build ios Android: $ ionic build android Windows: $ ionic build windows Live Reload App During Development...

If you try to submit tasks to a shutdown Executor or the queue is saturated (only possible with bounded ones) and maximum number of Threads has been reached, RejectedExecutionHandler.rejectedExecution(Runnable, ThreadPoolExecutor) will be called. The default behavior is that you'll get a Rej...

When you have a Stream you need to map but want to preserve the initial values as well, you can map the Stream to a Map.Entry<K,V> using a utility method like the following: public static <K, V> Function<K, Map.Entry<K, V>> entryMapper(Function<K, V> mapper){ retu...

Functions which return a character vector Base R has two functions for invoking a system command. Both require an additional parameter to capture the output of the system command. system("top -a -b -n 1", intern = TRUE) system2("top", "-a -b -n 1", stdout = TRUE) ...

var MY_AJAX_ACTION_URL = "path/to/controller.php"; var table = $('#user_list_table').DataTable({ "autoWidth": true, "paging": true, "searching": true, "ordering": true, "language": { ...