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check if jquery has been loaded, then load it if false
...if the page has images. Here's a sample script which checks if the JQuery file has loaded, since you won't have the convenience of being able to use $(document).ready(function...
http://neighborhood.org/core/sample/jquery/append-to-head.htm
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How to automatically start a service when running a docker container?
I have a Dockerfile to install MySQL server in a container, which I then start like this:
11 Answers
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Postgresql: password authentication failed for user “postgres”
... FATAL: password authentication failed for user "postgres" then check the file /etc/postgresql/8.4/main/pg_hba.conf: There must be a line like this as the first non-comment line:
local all postgres ident
For newer versions of PostgreSQL ident actually might be ...
Why doesn't Git ignore my specified file?
...g directory, and in that directory run git status and copy the path to the file from the status output and paste it into the .gitignore.
If that doesn’t work, then it’s likely that your file is already tracked by Git. You can confirm this through the output of git status. If the file is not lis...
Incomplete type is not allowed: stringstream
...k visual studio sometimes allows to use stringstream without including the file. Maybe this is the cause of error
– FindOutIslamNow
Oct 29 '18 at 9:58
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Django dump data for a single model?
... command in Django 1.0. However you could use a script to export the JSON file, and load it using loaddata:
from django.core import serializers
from myproject.myapp import models
data = serializers.serialize("json", models.MyModel.objects.all())
out = open("mymodel.json", "w")
out.write(data)
out....
Git - Undo pushed commits
...l re-checkout all the updates locally (so git status will list all updated files)
then you "do your work" and re-commit your changes (Note: this step is optional)
git commit -am "blabla"
At this moment your local tree differs from the remote
git push -f <remote-name> <branch-name>
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Multiple constructors in python? [duplicate]
...a:
class C(object):
def __init__(self, fd):
# Assume fd is a file-like object.
self.fd = fd
@classmethod
def fromfilename(cls, name):
return cls(open(name, 'rb'))
# Now you can do:
c = C(fd)
# or:
c = C.fromfilename('a filename')
Notice all those classmethod...
Efficiency of Java “Double Brace Initialization”?
...onymous inner classes -- each class will be compiled into a separate class file.
The "double brace initialization", as already mentioned, is an anonymous inner class with an instance initialization block, which means that a new class is created for each "initialization", all for the purpose of usua...
Android Studio/Intellij Idea: “Table of Contents” for a class
...ists all the methods, interfaces, classes and so on that are in that class file. This then allows you to jump to that position. This view is when you are in "Package Explorer" and click the arrow to the left of the class. This is one thing that makes me really miss eclipse. I know that you can easil...