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What is the difference between “text” and new String(“text”)?
What is the difference between these two following statements?
12 Answers
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How do we control web page caching, across all browsers?
Our investigations have shown us that not all browsers respect the HTTP cache directives in a uniform manner.
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Difference between __str__ and __repr__?
What is the difference between __str__ and __repr__ in Python?
23 Answers
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Is there a Python equivalent of the C# null-coalescing operator?
In C# there's a null-coalescing operator (written as ?? ) that allows for easy (short) null checking during assignment:
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Convert SQLITE SQL dump file to POSTGRESQL
I've been doing development using SQLITE database with production in POSTGRESQL. I just updated my local database with a huge amount of data and need to transfer a specific table to the production database.
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What is 'Pattern Matching' in functional languages?
...ing about functional programming and I've noticed that Pattern Matching is mentioned in many articles as one of the core features of functional languages.
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Batch file. Delete all files and folders in a directory
I want to have a batch file that will delete all the folders and files in my cache folder for my wireless toolkit.
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What is 'Context' on Android?
In Android programming, what exactly is a Context class and what is it used for?
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Convert datetime to Unix timestamp and convert it back in python
I have dt = datetime(2013,9,1,11) , and I would like to get a Unix timestamp of this datetime object.
11 Answers
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How to join two sets in one line without using “|”
Assume that S and T are assigned sets. Without using the join operator | , how can I find the union of the two sets? This, for example, finds the intersection:
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