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find vs find_by vs where
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JohnJohn
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How do you echo a 4-digit Unicode character in Bash?
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In UTF-8 it's actually 6 digits (or 3 bytes).
$ printf '\xE2\x98\xA0'
☠
To check how it's encoded by the console, use hexdump:
$ printf ☠ | hexdump
0000000 98e2 00a0
0000003
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What is __init__.py for?
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It used to be a required part of a package (old, pre-3.3 "regular package", not newer 3.3+ "namespace package").
Here's the documentation.
Python defines two types of packages, regular packages and namespace packages. Regular packages are traditional packages as they exist...
How to parse a JSON string into JsonNode in Jackson?
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377
A slight variation on Richards answer but readTree can take a string so you can simplify it to...
Calculate the median of a billion numbers
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53
Ah, my brain has just kicked into gear, I have a sensible suggestion now. Probably too late if t...
How to join two generators in Python?
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answered Jul 9 '10 at 8:30
PhilippPhilipp
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How to check if a database exists in SQL Server?
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edited Jun 8 '12 at 13:50
SteveC
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answer...
How to access array elements in a Django template?
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311
Remember that the dot notation in a Django template is used for four different notations in Py...
How to test which port MySQL is running on and whether it can be connected to?
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13 Answers
13
Active
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What do the different readystates in XMLHttpRequest mean, and how can I use them?
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1 The request has been set up
2 The request has been sent
3 The request is in process
4 The request is complete
(from https://www.w3schools.com/js/js_ajax_http_response.asp)
In practice you almost never use any of them except for 4.
Some XMLHttpRequest implementations ...