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What is the best way to do a substring in a batch file?
...ing the :~start,length notation:
%var:~10,5%
will extract 5 characters from position 10 in the environment variable %var%.
NOTE: The index of the strings is zero based, so the first character is at position 0, the second at 1, etc.
To get substrings of argument variables such as %0, %1, etc. y...
How to create ASP.NET Web API Url?
... @YuriyFaktorovich This post implies that Url.Action is being used from a View. Url is of type System.Web.Mvc.UrlHelper, and it doesn't map to WebApi routes. This is why you need the extra parameter: new { httproute = "" }.
– Jesse
Sep 24 '13 at 21:26
...
How to add additional fields to form before submit?
... way to use javascript and JQuery to add some additional fields to be sent from a HTTP form using POST?
6 Answers
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Java: function for arrays like PHP's join()?
...
Starting from Java8 it is possible to use String.join().
String.join(", ", new String[]{"Hello", "World", "!"})
Generates:
Hello, World, !
Otherwise, Apache Commons Lang has a StringUtils class which has a join function which wi...
val-mutable versus var-immutable in Scala
...use you need to store the resulting collection somewhere. If you only read from immutable collections, then use vals.
In general, make sure that you don't confuse references and objects. vals are immutable references (constant pointers in C). That is, when you use val x = new MutableFoo(), you'll b...
Is it possible for a unit test to assert that a method calls sys.exit()
...f.assertEqual(cm.exception.code, 1)
sys.exit Documentation:
Exit from Python. This is implemented by raising the SystemExit exception ... it is possible to intercept the exit attempt at an outer level.
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Find the nth occurrence of substring in a string
... } else {
PyErr_SetString(PyExc_TypeError, "Cannot obtain char * from argument 0");
return 1;
}
P->c = x[0];
return 0;
}
static PyObject* py_find_nth(PyObject *self, PyObject *args) {
params P;
if (!parse_args(args, &P)) {
return Py_BuildValue("i...
How to access test resources in Scala?
...urce is a path relative to
// the resources directory.
val source = Source.fromURL(getClass.getResource("/data.xml"))
Of course that source is now just a normal Scala IO object so you can do anything you want with it, like reading the contents and using it for test data.
There are other methods t...
jQuery: Adding two attributes via the .attr(); method
...
WARNING: When setting the 'class' attribute, you must always use quotes!
From the jQuery documentation (Sep 2016) for .attr:
Attempting to change the type attribute on an input or button element created via document.createElement() will throw an exception on Internet Explorer 8 or older.
Edit:
F...
What is “lifting” in Scala?
...As hcoopz says below (and I've just realized that this would have saved me from writing a ton of unnecessary code), the term "lift" also has a meaning within Monad Transformers. Recall that a monad transformers are a way of "stacking" monads on top of each other (monads do not compose).
So for exam...