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Get lengths of a list in a jinja2 template
... You could use none build-in function to test for None. Check more here: https://jinja.palletsprojects.com/en/2.10.x/templates/#none. Example is on this thread: https://stackoverflow.com/questions/19614027/jinja2-template-variable-if-none-object-set-a-default-value
– Wojciech...
Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari
...
I came across this interesting post
https://medium.com/@harrycheung/mobile-app-performance-redux-e512be94f976#.kfbauchtz
Hope this information helps.
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How to create a self-signed certificate for a domain name for development?
... hand side
On the right hand side under Actions select Bindings
Add a new HTTPS binding and select the certificate you just created (if your certificate is a wildcard certificate you'll need to specify a hostname)
Click OK and test it out.
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How to download a single commit-diff from GitHub?
...self.
Adding .patch (or .diff) to the commit-URL will give a nice patch:
https://github.com/foo/bar/commit/${SHA}.patch
Thanks to Ten Things You Didn't Know Git And GitHub Could Do...
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im...
How to center text vertically with a large font-awesome icon?
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a flexbox option - font awesome 4.7 and below
FA 4.x Hosted URL - https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css
div {
display: inline-flex; /* make element size relative to content */
align-items: center; /* vertical alignment of items */
line-...
Python equivalent of D3.js
...dated more recently. Though the examples are all static D3.
more info:
https://github.com/wrobstory/vincent
https://pypi.python.org/pypi/vincent/0.1.6
The graphs can be viewed in Ipython, just add this code
vincent.core.initialize_notebook()
Or output to JSON where you can view the JSON o...
Entity Framework - Start Over - Undo/Rollback All Migrations
...Update-Database -Migration 0
Remove-Migration
The documentation is here: https://docs.microsoft.com/en-us/ef/core/miscellaneous/cli/powershell#update-database
and here: https://docs.microsoft.com/en-us/ef/core/miscellaneous/cli/powershell#remove-migration
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How to add color to Github's README.md file
...le if you wanted to provide a list of colours for reference:
-  `#f03c15`
-  `#c5f015`
-  `#1589F0`
Produces...
How to pass a user defined argument in scrapy spider
...ot break.
class MySpider(Spider):
name="myspider"
start_urls = ('https://httpbin.org/ip',)
def parse(self,response):
print getattr(self,'category','')
print getattr(self,'domain','')
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How can I use redis with Django?
...dis is probably to cache 'responses' and sessions.
There's a backend here https://github.com/sebleier/django-redis-cache/ and excellent documentation in the Django docs here: https://docs.djangoproject.com/en/1.3/topics/cache/ .
I've recently started using https://github.com/erussell/django-redis-...