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Why do most fields (class members) in Android tutorial start with `m`?
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This notation comes from AOSP (Android Open Source Project) Code Style Guidelines for Contributors:
Follow Field Naming Conventions
Non-public, non-static field names
start with m.
Static field names start with s.
Other fields start with a low...
Is it better to return null or empty collection?
...h(var item in myInstance.CollectionProperty)
/* arrgh */
}
It is considered a best practice to NEVER return null when returning a collection or enumerable. ALWAYS return an empty enumerable/collection. It prevents the aforementioned nonsense, and prevents your car getting egged by co-workers...
Vertically centering a div inside another div [duplicate]
I want to center a div which is added inside another div.
24 Answers
24
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How to insert spaces/tabs in text using HTML/CSS
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In cases wherein the width/height of the space is beyond   I usually use:
For horizontal spacer:
<span style="display:inline-block; width: YOURWIDTH;"></span>
For vertical spacer:
<span style="display:block; height: YO...
PostgreSQL: Can you create an index in the CREATE TABLE definition?
... answered Jun 4 '11 at 22:04
ridrid
51.1k2424 gold badges135135 silver badges176176 bronze badges
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Purge Kafka Topic
...te a topic named MyTopic:
Describe the topic, and take not of the broker ids
Stop the Apache Kafka daemon for each broker ID listed.
Connect to each broker, and delete the topic data folder, e.g. rm -rf /tmp/kafka-logs/MyTopic-0. Repeat for other partitions, and all replicas
Delete the topic meta...
Entity Framework code first unique column
...work Code First:
Column 'x' in table 'dbo.y' is of a type that is invalid for use as a key column in an index.
The reason is because of this:
SQL Server retains the 900-byte limit for the maximum total size of all index key columns."
(from: http://msdn.microsoft.com/en-us/library/ms19124...
django 1.5 - How to use variables inside static tag
...ad static %}
{% static "" as baseUrl %}
<img src="{{ baseUrl }}/img/{{p.id}}"></img>
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Professional jQuery based Combobox control? [closed]
... New version (0.9.3) just released. FlexBox now supports client-side JSON filtering.
– Noah Heldman
Oct 1 '10 at 16:30
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The backend version is not supported to design database diagrams or tables
... I run the exe offered at: microsoft.com/en-us/download/confirmation.aspx?id=29062 I get a message saying no updates are available. I cannot find any way to update SMSS - even though it sounds insanely dumb.
– JensOlsen
Aug 5 '14 at 19:31
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