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How do I correctly clone a JavaScript object?
I have an object x . I'd like to copy it as object y , such that changes to y do not modify x . I realized that copying objects derived from built-in JavaScript objects will result in extra, unwanted properties. This isn't a problem, since I'm copying one of my own literal-constructed objects.
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Writing a Python list of lists to a csv file
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Python's built-in CSV module can handle this easily:
import csv
with open("output.csv", "wb") as f:
writer = csv.writer(f)
writer.writerows(a)
This assumes your list is defined as a, as it is in your question. You can tweak the exact format of the output CSV via the various optio...
Call Go functions from C
I am trying to create a static object written in Go to interface with a C program (say, a kernel module or something).
4 An...
How to check if a map contains a key in Go?
I know I can iterate over a map m by,
10 Answers
10
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Find running median from a stream of integers
...Heap on the right. Then process stream data one by one,
Step 1: Add next item to one of the heaps
if next item is smaller than maxHeap root add it to maxHeap,
else add it to minHeap
Step 2: Balance the heaps (after this step heaps will be either balanced or
one of them will contain 1 mo...
Rails 3 execute custom sql query without a model
I need to write a standalone ruby script that is supposed to deal with database. I used code given below in rails 3
5 Answe...
Node.js / Express.js - How does app.router work?
...uter I think I should explain at least what I think happens when working with middleware. To use middleware, the function to use is app.use() . When the middleware is being executed, it will either call the next middleware by using next() or make it so no more middleware get called. That means t...
How to convert JSON string to array
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If you pass the JSON in your post to json_decode, it will fail. Valid JSON strings have quoted keys:
json_decode('{foo:"bar"}'); // this fails
json_decode('{"foo":"bar"}', true); // returns array("foo" => "bar")
json_decode('{"foo":"bar"}'); // returns an o...
Rails I18n validation deprecation warning
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Important: Make sure your app is not using I18n 0.6.8, it has a bug that prevents the configuration to be set correctly.
Short answer
In order to silence the warning edit the application.rb file and include the following line inside the Rails::Application body
config.i18n.en...
Type hinting a collection of a specified type
Using Python 3's function annotations, it is possible to specify the type of items contained within a homogeneous list (or other collection) for the purpose of type hinting in PyCharm and other IDEs?
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