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What is the leading LINQ for JavaScript library? [closed]
...e already much more useful implementations of that in knockout, angularjs, etc.) and the answer itself doesn't even try to explain what the relevance is, and even if it was really the most appropriate choice, it's hardly "leading" - it has about 1/5 the downloads of linq.js.
– ...
How can I add a column that doesn't allow nulls in a Postgresql database?
...row. Not sure how Postgres locks up a table when doing this. Or, if column order matters, you can't just add a column with the ALTER command.
– alphadogg
Feb 5 '09 at 14:31
...
What is the equivalent of MATLAB's repmat in NumPy
...n no longer assert that repmat and tile are equivalent instructions.
In order to get tile to behave like repmat, in Python one has to make sure that the input matrix has as many dimensions as the elements are in the sequence. This is done, for example, by a little preconditioning and creating a r...
What is the difference between declarative and imperative programming? [closed]
...perative codes).
E.g., LINQ is more declarative than loops (for, while, etc.), e.g., you can use list.Where() to get a new filtered list. For this to work, Microsoft has done all the heavy lifting behind the LINQ abstraction.
In fact, one of the reason functional programming and functional libr...
Do I need dependency injection in NodeJS, or how to deal with …?
...ter name)
var db = require('whichever_db_vendor_i_use');
module.exports.fetchConnection() = function() {
//logic to test connection
//do I want to connection pool?
//do I need only one connection throughout the lifecyle of my application?
return db.createConnection(port, host, d...
What's the best way to validate an XML file against an XSD file?
...e example:
// File schemaFile = new File("/location/to/localfile.xsd"); // etc.
Source xmlFile = new StreamSource(new File("web.xml"));
SchemaFactory schemaFactory = SchemaFactory
.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
try {
Schema schema = schemaFactory.newSchema(schemaFile);
Val...
How do I query between two dates using MySQL?
...querying between September 29 2010 and January 30 2010). Try reversing the order of the dates:
SELECT *
FROM `objects`
WHERE (date_field BETWEEN '2010-01-30 14:15:55' AND '2010-09-29 10:15:55')
share
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DateTime.ToString() format that can be used in a filename or extension?
... since the list of files cannot be sorted by name to get them in date time order. Most-significant to least significant should be the order of the day.
– Bernhard Hofmann
Mar 16 '18 at 12:19
...
How to select a single field for all documents in a MongoDB collection?
...a method called `projection that you would append to your find function in order to project.
Following the same example set, commands like the following can be used with Node:
db.student.find({}).project({roll:1})
SELECT _id, roll FROM student
Or
db.student.find({}).project({roll:1, _id: 0})...
Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]
...tances? This is because ins1 and ins2 share the same calc() function. In order to do this with public methods created during construction, you'd have to assign the new method to each instance that has been created, which is an awkward task. This is because ins1 and ins2 would have their own, indi...