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What is the $? (dollar question mark) variable in shell scripting? [duplicate]
...al Parameters" http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_05_02 :
? Expands to the decimal exit status of the most recent pipeline (see Pipelines).
man bash "Special Parameters":
The shell treats several parameters specially. These parameters may only be refe...
URL-parameters and logic in Django class-based views (TemplateView)
...re using a TemplateView which means that you would do the logic in your get_context_data override.
– Ngenator
Apr 2 '13 at 12:58
4
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Replace tabs with spaces in vim
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What this all means, is nicely explained on the Vim wiki.
– Serge Stroobandt
Dec 11 '16 at 1:43
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From inside of a Docker container, how do I connect to the localhost of the machine?
...as described in qoomon's answer.
2020-01: some progress has been made. If all goes well, this should land in Docker 20.04
TLDR
Use --network="host" in your docker run command, then 127.0.0.1 in your docker container will point to your docker host.
Note: This mode only works on Docker for Linux...
Python Git Module experiences? [closed]
.../kennethreitz/legit/blob/develop/legit/scm.py
– forivall
Sep 17 '12 at 17:17
9
Based on this answ...
How do you uninstall all dependencies listed in package.json (NPM)?
...I have a package.json file defined in my application root and run npm install -g it will install all the dependencies defined in package.json, globablly.
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How do I write JSON data to a file?
... codecs.getwriter('utf-8')(f), ensure_ascii=False)
The codecs.getwriter call is redundant in Python 3 but required for Python 2
Readability and size:
The use of ensure_ascii=False gives better readability and smaller size:
>>> json.dumps({'price': '€10'})
'{"price": "\\u20ac10"}'
&...
How to wait for the 'end' of 'resize' event and only then perform an action?
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Lodash is also useful here, which has _.throttle and _.debounce methods as well. I think debounce is a superior approach compared to the above accepted example.
– Kevin Leary
Oct 17 '16 at 13:11
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Rails 4: before_filter vs. before_action
...ller::Base, before_action is just a new syntax for before_filter.
However all before_filters syntax are deprecated in Rails 5.0 and will be removed in Rails 5.1
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WebKit issues with event.layerX and event.layerY
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I have disabled all my extensions and I still get these warnings with 1.7.2
– basZero
May 7 '12 at 7:40
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