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Ruby custom error classes: inheritance of the message attribute
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raise already sets the message so you don't have to pass it to the constructor:
class MyCustomError < StandardError
attr_reader :object
def initialize(object)
@object = object
end
end
begin
raise MyCustomError.new("an object"), "a message"
rescu...
How to set my default shell on Mac?
I do not like to retype fish every time I start terminal. I want fish on by default. How can I set fish shell as my default shell on a Mac?
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Python: Best way to add to sys.path relative to the current running script
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If you don't want to edit each file
Install you library like a normal python libray
or
Set PYTHONPATH to your lib
or if you are willing to add a single line to each file, add a import statement at top e.g.
import import_my_lib
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Return multiple values to a method caller
...etMultipleValues() { return (1, 2); } This example was taken from our Documentation topic example on this.
– Jeppe Stig Nielsen
Jan 5 '17 at 11:26
1
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How do I determine k when using k-means clustering?
...les Elkan show some evidence that this works better than BIC, and that BIC does not penalize the model's complexity strongly enough.
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How do I avoid the specification of the username and password at every git push?
...r home directory
ssh-keygen -t rsa #Press enter for all values
For Windows
(Only works if the commit program is capable of using certificates/private & public ssh keys)
Use Putty Gen to generate a key
Export the key as an open SSH key
Here is a walkthrough on putty gen for the above st...
Do SVG docs support custom data- attributes?
...for data-*. SVG allows any attribute and tag to be included, as long as it doesn't conflict with existing ones (in other words: you should use namespaces).
To use this (equivalent) mechanism:
use mydata:id instead of data-myid, like this: <p mydata:id="123456">
make sure you define the nam...
When to use Tornado, when to use Twisted / Cyclone / GEvent / other [closed]
...merce site, then you should probably go with Django. It will get your work done quick. You dont have to worry about too many technology choices. It provides everything thing you need from template engine to ORM. It will be slightly opinionated about the way you structure your app, which is good If y...
Different ways of clearing lists
Is there any reason to do anything more complicated than one of these two lines when you want to clear a list in Python?
8 ...
Detect element content changes with jQuery
...d detects changes on form elements, but is there a way of detecting when a DOM element's content was changed?
15 Answers
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