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ListBox vs. ListView - how to choose for data binding
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A ListView is a specialized ListBox (that is, it inherits from ListBox). It allows you to specify different views rather than a straight list. You can either roll your own view, or use GridView (think explorer-like "details view"). It's basically the multi-column listbox, the cou...
Undoing a 'git push'
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The accepted solution (from @charles bailey) is highly dangerous if you are working in a shared repo.
As a best practice, all commits pushed to a remote repo that is shared should be considered 'immutable'.
Use 'git revert' instead:
http://www.k...
Case-Insensitive List Search
...word in the Text property, you can create a list of keywords and remove it from list of books:
List<Book> listToSearch = new List<Book>()
{
new Book(){
BookId = 1,
CreatedDate = new DateTime(2014, 5, 27),
Text = " test voprivreda...",
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Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?
...f the operator is falsy. Note that the result of myVariable3 below differs from myVariable3 above.
const myVariable = a?.b?.c || 'Some other value';
// Evaluates to 'Some other value'
const myVariable2 = null || 'Some other value';
// Evaluates to 'Some other value'
const myVariable3 = '' || 'Some...
Check if an array is empty or exists
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Short and quick! It took me a while coming from C# to get used to if(obj) to check for null, but now I love it: if(obj) // null check; if(array && array.length) // array null or empty check; if(array && !array.length) // array exists, but empty check; ...
Why do you use typedef when declaring an enum in C++?
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Holdover from C.
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Synchronous request in Node.js
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Parallel if they can be executed in parallel, you don't need the results from each during each parallel function, and you need a callback when all have completed.
Waterfall if you want to morph the results in each function and pass to the next
endpoints =
[{ host: 'www.example.com', path: '/ap...
How do you dismiss the keyboard when editing a UITextField
...to this action on your controller (or whatever you're using to link events from the UI). Whenever the user enters text and dismisses the text field, the controller will be sent this message.
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Callback functions in Java
...st preferred way which was what i was looking for.. it's basically derived from these answers but i had to manipulate it to more more redundant and efficient.. and i think everybody looking for what i come up with
To the point::
first make an Interface that simple
public interface myCallback {
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How do you add an array to another array in Ruby and not end up with a multi-dimensional result?
...ike Array#+ which will do the same thing but create a new array).
Straight from the docs (http://www.ruby-doc.org/core-1.9.3/Array.html#method-i-concat):
concat(other_ary)
Appends the elements of other_ary to self.
So
[1,2].concat([3,4]) #=> [1,2,3,4]
Array#concat will not flatten a multi...