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What are the key differences between Scala and Groovy? [closed]
...ts instead. Groovy uses the static concept.
Scala does not have built in selection of arithmetic operators in quite the way that Groovy does. In Scala you can name methods very flexibly.
Groovy has the elvis operator for dealing with null. Scala programmers prefer to use Option types to using n...
Difference between .keystore file and .jks file
...t Unity recognizes the former but not the latter when you're navigating to select your keystore file (Unity 2017.3, macOS).
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INSERT statement conflicted with the FOREIGN KEY constraint - SQL Server
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Alt + F1 is shortcut for sp_help, for futrure readers, select table and press alt + f1
– satsvelke
Jul 16 '19 at 7:00
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Force browser to download image files on click
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Thanks should've been the selected answer since the question asked how to do it in JAVASCRIPT.
– codehelp4
Sep 23 '18 at 2:25
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How to write :hover condition for a:before and a:after?
...t comes after the pseudo-class (and in fact, at the very end of the entire selector). Notice also that they are two different things; calling them both "pseudo-selectors" is going to confuse you once you run into syntax problems such as this one.
If you're writing CSS3, you can denote a pseudo-eleme...
How to open a Bootstrap modal window using jQuery?
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Just call the modal method(without passing any parameters) using jQuery selector.
Here is example:
$('#modal').modal();
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Laravel Eloquent Sum of relation's column
...([
'activity AS paid_sum' => function ($query) {
$query->select(DB::raw("SUM(amount_total) as paidsum"))->where('status', 'paid');
}
]);
it returns
"paid_sum_count" => "320.00"
in Deals attribute.
This it now the sum which i wanted to get not the count.
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Java Hashmap: How to get key from value?
...ick and dirty way that I've made constant maps, which will only work for a select few datasets:
Contains only 1 to 1 pairs
Set of values is disjoint from the set of keys (1->2, 2->3 breaks it)
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Emulator error: This AVD's configuration is missing a kernel file
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Open AVD Manager in Administrator mode
Select VM and click edit, click OK
Start VM.
Editor's note: By administrator mode, he meant Right-click > Run as administrator on windows platforms .
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Sending a notification from a service in Android
...like this:
// prepare intent which is triggered if the
// notification is selected
Intent intent = new Intent(this, NotificationReceiver.class);
PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent, 0);
// build notification
// the addAction re-use the same intent to keep the example...