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What is the point of interfaces in PHP?
Interfaces allow you to create code which defines the methods of classes that implement it. You cannot however add any code to those methods.
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how to check if object already exists in a list
I have a list
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What is the good python3 equivalent for auto tuple unpacking in lambda?
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8 Answers
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object==null or null==object?
I heard from somebody that null == object is better than object == null check
11 Answers
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SQL select only rows with max value on a column [duplicate]
I have this table for documents (simplified version here):
27 Answers
27
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In Django, how do I check if a user is in a certain group?
I created a custom group in Django's admin site.
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
I recently attended an interview where I was asked "write a program to find 100 largest numbers out of an array of 1 billion numbers."
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What's the difference between the various methods to get a Context?
In various bits of Android code I've seen:
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What's the best practice for primary keys in tables?
When designing tables, I've developed a habit of having one column that is unique and that I make the primary key. This is achieved in three ways depending on requirements:
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Sharing a URL with a query string on Twitter
I'm trying to put a Twitter share link in an email. Because this is in an email I can't rely on JavaScript, and have to use the "Build Your Own" Tweet button.
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