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How do I add a class to a given element?
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This one seems to be the best one to use, as the ones with space at least feel like hacks - not ment for adding classes...
– Silver Ringvee
Dec 18 '15 at 7:26
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Chrome desktop notification example [closed]
... many browsers (see support on caniuse), and require user permission. As a best practice, don't ask for this permission right off the bat. Explain to the user first why they would want notifications and see other push notifications patterns.
Note that Chrome doesn't honor the notification icon on L...
How to update Ruby to 1.9.x on Mac?
...leopard default of 1.8.7. Can somebody point me to tutorial or explain the best method to update Ruby on my mac from 1.8 to 1.9.2? Thanks
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How to get multiple counts with one SQL query?
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Why this might not be the best answer: always a full table scan. Consider a join of count-subqueries, or nested counts in a select. However with no indexes present, this might be best as you have guaranteed only one table scan vs multiple. See answer ...
Django rest framework nested self-referential objects
...ult using a serializers.SerializerMethodField. I'm not sure if this is the best way, but worked for me:
class CategorySerializer(serializers.ModelSerializer):
subcategories = serializers.SerializerMethodField(
read_only=True, method_name="get_child_categories")
class Meta:
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android asynctask sending callbacks to ui [duplicate]
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@DmitryZaitsev very nice suggestion, I Think this is the best solution yet on non-private-inner class AsyncTask problems :-)
– WiZarD
May 8 '13 at 13:28
1
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How do I get time of a Python program's execution?
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@moudi The top answer to this question is your best bet. Just set the start time right before you loop, and calculate the elapsed time at the exit of the loop.
– Nicojo
Jun 14 '19 at 19:08
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How to implement a queue with three stacks?
... done.
X := that element
Then we can define
Abv(n) := the number of items in stack A(n) that is above X
Blo(n) := the number of elements in stack A(n) that is below X
|A(n)| = Abv(n) + Blo(n)
ASRT1 := The number of pops required to dequeue X from Q(n) is at least Abv(n)
From (ASRT0) and (...
How do you query for “is not null” in Mongo?
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One liner is the best :
db.mycollection.find({ 'fieldname' : { $exists: true, $ne: null } });
Here,
mycollection : place your desired collection name
fieldname : place your desired field name
Explaination :
$exists : When is true, $...
How can I deserialize JSON to a simple Dictionary in ASP.NET?
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@Highmastdon No it does not. I have found the best way to deserialize into a dictionary is to use dynamic as the type for the values: JsonConvert.DeserializeObject<Dictionary<string, dynamic>>(json);
– Erik Schierboom
Ju...