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How to prevent browser page caching in Rails
...er Rails 5:
class ApplicationController < ActionController::Base
before_action :set_cache_headers
private
def set_cache_headers
response.headers["Cache-Control"] = "no-cache, no-store"
response.headers["Pragma"] = "no-cache"
response.headers["Expires"] = "Mon, 01 Jan 1990 00...
go to character in vim
I'm getting an error message from a python script at position 21490 .
2 Answers
2
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Why is early return slower than else?
...en't figured out an easy way to check whether it is right, but I have a theory for you.
I tried your code and get the same of results, without_else() is repeatedly slightly slower than with_else():
>>> T(lambda : without_else()).repeat()
[0.42015745017874906, 0.3188967452567226, 0.3198428...
correct way to use super (argument passing)
...in common. In that case, you can't pop the key-value pairs off of **kwargs or remove them from *args. Instead, you can define a Base class which unlike object, absorbs/ignores arguments:
class Base(object):
def __init__(self, *args, **kwargs): pass
class A(Base):
def __init__(self, *args, ...
Is it a good practice to use try-except-else in Python?
...
"I do not know if it is out of ignorance, but I do not like that
kind of programming, as it is using exceptions to perform flow control."
In the Python world, using exceptions for flow control is common and normal.
Even the Python core developers use exc...
p vs puts in Ruby
... a newline, i.e. it prints the value of inspect instead of to_s, which is more suitable for debugging (because you can e.g. tell the difference between 1, "1" and "2\b1", which you can't when printing without inspect).
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Remove white space below image [duplicate]
...sterious 2-3 pixels of white space between the bottom of my image and its border (see below).
9 Answers
...
Global access to Rake DSL methods is deprecated
I am working through the Ruby on Rails 3 tutorial book and typed the following on the command line:
5 Answers
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Django URL Redirect
...he Class Based View called RedirectView
from django.views.generic.base import RedirectView
urlpatterns = patterns('',
url(r'^$', 'macmonster.views.home'),
#url(r'^macmon_home$', 'macmonster.views.home'),
url(r'^macmon_output/$', 'macmonster.views.output'),
url(r'^macmon_about/$', '...
Update parent scope variable in AngularJS
... $scope.parentobj.parentproperty = "this WILL modify the parent";
});
Working demo: http://jsfiddle.net/sh0ber/xxNxj/
See What are the nuances of scope prototypal / prototypical inheritance in AngularJS?
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