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Setting focus on an HTML input box on page load
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Will that actually set the input focus? Which browser did you try it on?
– Peter Mortensen
Jul 1 '19 at 1:44
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iOS Detection of Screenshot?
...onger true. Apple has made it so touchesCancelled:withEvent: is no longer called when the user takes a screenshot.
This would effectively break Snapchat entirely, so a couple betas in a new solution was added. Now, the solution is as simple as using NSNotificationCenter to add an observer to UIApp...
Swapping column values in MySQL
...test s1, swap_test s2 SET s1.x=s1.y, s1.y=s2.x WHERE s1.id=s2.id;
Essentially, the 1st table is the one getting updated and the 2nd one is used to pull the old data from.
Note that this approach requires a primary key to be present.
This is my test schema:
CREATE TABLE `swap_test` (
`id` int(1...
Rails: How to list database tables/objects using the Rails console?
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To get a list of all model classes, you can use ActiveRecord::Base.subclasses e.g.
ActiveRecord::Base.subclasses.map { |cl| cl.name }
ActiveRecord::Base.subclasses.find { |cl| cl.name == "Foo" }
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Multiline for WPF TextBox
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Here is the sample XAML that will allow TextBox to accept multiline text and it uses it's own Scrollbars:
<TextBox
Height="200"
Width="500"
TextWrapping="Wrap"
AcceptsReturn="True"
HorizontalScrollBarVisibility="Disabled"
VerticalScrollBarVisibility="Auto...
Show hidden div on ng-click within ng-repeat
...s" ng-class="{ 'hidden': ! showDetails }">
I like this more, since it allows you to do some nice transitions: http://jsfiddle.net/asmKj/1/
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How do I enable MSDTC on SQL Server?
... box.
Click the Security tab.
Check mark "Network DTC Access" checkbox.
Finally check mark "Allow Inbound" and "Allow Outbound" checkboxes.
Click Apply, OK.
A message will pop up about restarting the service.
Click OK and That's all.
Reference : https://msdn.microsoft.com/en-us/library/dd327979.as...
What did MongoDB not being ACID compliant before v4 really mean?
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Excellent information, generally an excellent answer with the exception of suggesting to use MySQL.
– Doug Molineux
Oct 23 '14 at 20:52
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How to implement a unique index on two columns in rails
...st can remove the indexes who were just for one column or if I have to use all three indexes:
1 Answer
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How to access cookies in AngularJS?
... on if you used $cookie to store value or $cookieStore. Of course, you'd really want to use one or the other.
In addition to adding reference to the js file you need to inject ngCookies into your app definition such as:
angular.module('myApp', ['ngCookies']);
you should then be good to go.
Her...