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what is the preferred way to mutate a React state?
...
concat returns a new array, so you can do
this.setState({list: this.state.list.concat([newObject])});
another alternative is React's immutability helper
var newState = React.addons.update(this.state, {
list : {
$push : [newObject]
}
});
this....
Hibernate: “Field 'id' doesn't have a default value”
... just dropping the offending table (or tables), assuming that Hibernate is set up to automatically create/manage the DB schema. To drop tables from a managed schema, SET foreign_key_checks = 0; is your friend. Just be sure to SET foreign_key_checks = 1; when you're done.
– ar...
How to get value from form field in django framework?
... Is it possible to get the formField's value if it's initial is set?
– Fydo
Oct 7 '14 at 15:37
...
When applying a patch is there any way to resolve conflicts?
...
If you are frequently running into the same conflict set when applying patches, rebasing or merging then you can use git rerere (reuse recorded resolution) function. This allows you to pre-define how conflicts should be resolved based on how you resolved them in the past. See h...
What would be a good docker webdev workflow?
...ilar questions and have several great answers to your questions.
You can setup a MySQL docker instance and have data persist on a stateless data container, aka the data container does not need to be actively running
Yes I would recommend having a separate instance for your web server and database....
Using Ajax.BeginForm with ASP.NET MVC 3 Razor
...l:
public class MyViewModel
{
[Required]
public string Foo { get; set; }
}
Controller:
public class HomeController : Controller
{
public ActionResult Index()
{
return View(new MyViewModel());
}
[HttpPost]
public ActionResult Index(MyViewModel model)
{
...
'this' vs $scope in AngularJS controllers
...ated $scope object.
A controller (constructor) function is responsible for setting model properties and functions/behaviour on its associated $scope.
Only methods defined on this $scope object (and parent scope objects, if prototypical inheritance is in play) are accessible from the HTML/view. E.g....
CSS @font-face - what does “src: local('☺')” mean?
...phs into A blocks.
On OS X, Font Management software may
alter system settings to show a
dialog when trying to access a
local() font that's accessible
outside of Library/Fonts. More detail
on my bulletproof post.
Font Explorer X is
also known to mess up other stuff in
Firefox.
A...
Extract elements of list at odd positions
...
I like List comprehensions because of their Math (Set) syntax. So how about this:
L = [1, 2, 3, 4, 5, 6, 7]
odd_numbers = [y for x,y in enumerate(L) if x%2 != 0]
even_numbers = [y for x,y in enumerate(L) if x%2 == 0]
Basically, if you enumerate over a list, you'll get the...
Union Vs Concat in Linq
...ems will not be compared by reference:
class X
{
public int ID { get; set; }
public override bool Equals(object obj)
{
X x = obj as X;
if (x == null)
return false;
return x.ID == ID;
}
public override int GetHashCode()
{
return I...