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Remove excess whitespace from within a string
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Not sure exactly what you want but here are two situations:
If you are just dealing with excess whitespace on the beginning or end of the string you can use trim(), ltrim() or rtrim() to remove it.
If you are dealing with extra spaces within a string consider a preg_replace of multipl...
How to delete a row by reference in data.table?
...ated to assignment by reference versus copying in data.table . I want to know if one can delete rows by reference, similar to
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split string only on first instance - java
...har but it doesn't work for me
split string only on first instance of specified character
6 Answers
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Custom error pages on asp.net MVC3
... handle custom errors. I define an ErrorsController with actions handling different HTTP errors:
public class ErrorsController : Controller
{
public ActionResult General(Exception exception)
{
return Content("General failure", "text/plain");
}
public ActionResult Http404()
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How can I disable HREF if onclick is executed?
I have an anchor with both HREF and ONCLICK attributes set. If clicked and Javascript is enabled, I want it to only execute ONCLICK and ignore HREF . Likewise, if Javascript is disabled or unsupported, I want it to follow the HREF URL and ignore ONCLICK . Below is an example of what I'...
Passing a list of kwargs?
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ah, I wasn't paying attention. Should be better now.
– David Z
Sep 30 '09 at 20:26
add a comment
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Iteration over std::vector: unsigned vs signed index variable
...s use the prefix increment form for iterators whose definitions you don't know. That will ensure your code runs as generic as possible.
Using Range C++11
for(auto const& value: a) {
/* std::cout << value; ... */
Using indices
for(std::vector<int>::size_type i = 0; i != v.s...
How do I set a ViewModel on a window in XAML using DataContext property?
...other people provided (which are good, and correct), there is a way to specify the ViewModel in XAML, yet still separate the specific ViewModel from the View. Separating them is useful for when you want to write isolated test cases.
In App.xaml:
<Application
x:Class="BuildAssistantUI.App"
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find() with nil when there are no records
...ckoverflow.com/a/26885027/1438478 for the new way to find an item by a specific attribute.
– Fralcon
Mar 26 '15 at 20:58
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Jasmine.js comparing arrays
...yTheEntity "The addMatchers function is no longer on the spec (this) it is now on the global jasmine object." - see Jasmine docs
– rwisch45
May 1 '16 at 10:46
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