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In Python, how do I indicate I'm overriding a method?
... Java, for example, the @Override annotation not only provides compile-time checking of an override but makes for excellent self-documenting code.
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What's the difference between “git reset” and “git checkout”?
I've always thought of git reset and git checkout as the same, in the sense that both bring the project back to a specific commit. However, I feel they can't be exactly the same, as that would be redundant. What is the actual difference between the two? I'm a bit confused, as the svn only has s...
Django - limiting query results
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Django querysets are lazy. That means a query will hit the database only when you specifically ask for the result.
So until you print or actually use the result of a query you can filter further with no database access.
As you can see below your code onl...
VIM ctrlp.vim plugin: how to rescan files?
I have come across the awesome ctrlp.vim plugin . It is a good alternative to the Command-T plugin which I have used before. What I did not like about Command-T is that it would take about 20-30 seconds to rescan files when it is invoked for the first time after starting vim.
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Best way to use html5 data attributes with rails content_tag helper?
The issue, of course, is that ruby symbols don't like hyphens. So something like this obviously won't work:
6 Answers
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PostgreSQL: Difference between text and varchar (character varying)
...limit
varchar(n) – it's problematic to change the limit in live environment (requires exclusive lock while altering table)
varchar – just like text
text – for me a winner – over (n) data types because it lacks their problems, and over varchar – because it has distinct name
The a...
What is HEAD in Git?
You see the Git documentation saying things like
21 Answers
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What is the purpose of Node.js module.exports and how do you use it?
...result of a require call.
The exports variable is initially set to that same object (i.e. it's a shorthand "alias"), so in the module code you would usually write something like this:
let myFunc1 = function() { ... };
let myFunc2 = function() { ... };
exports.myFunc1 = myFunc1;
exports.myFunc2 = m...
How to dynamically build a JSON object with Python?
...ith JSON data. I would like to dynamically build a JSON object by adding some key-value to an existing JSON object.
5 Answe...
How to generate the JPA entity Metamodel?
...ty associated with the CriteriaQuery JPA 2.0 also has an API to support Metamodel representation of entities.
7 Answer...