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What is the difference between ndarray and array in numpy?
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edited Sep 27 '18 at 14:40
nbro
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What is database pooling?
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224
Database connection pooling is a method used to keep database connections open so they can be re...
Redis is single-threaded, then how does it do concurrent I/O?
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ChrisCantrell
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answered May 8 '12 at 8:51
Didier SpeziaDidier S...
How do I calculate the normal vector of a line segment?
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nginx: [emerg] could not build the server_names_hash, you should increase server_names_hash_bucket_s
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Sending a JSON to server and retrieving a JSON in return, without JQuery
.../json");
xhr.onreadystatechange = function () {
if (xhr.readyState === 4 && xhr.status === 200) {
var json = JSON.parse(xhr.responseText);
console.log(json.email + ", " + json.password);
}
};
var data = JSON.stringify({"email": "hey@mail.com", "password": "101010"});
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Check if key exists and iterate the JSON array using Python
...me": "2012-05-01", "created_time": "2012-05-01", "to": {"data": [{"id": "1543", "name": "Honey Pinter"}]}, "type": "status", "id": "id_7"}"""
def getTargetIds(jsonData):
data = json.loads(jsonData)
if 'to' not in data:
raise ValueError("No target in given data")
if 'data' not in...
Sequence contains more than one element
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Cᴏʀʏ
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answered Aug 10 '09 at 19:38
JaredParJaredPar
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How can I initialize an ArrayList with all zeroes in Java?
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432
The integer passed to the constructor represents its initial capacity, i.e., the number of ele...
mongodb count num of distinct values per field/key
...nd", "France", "Australia" ]
> db.countries.distinct('country').length
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