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Is it possible to ping a server from Javascript?
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I have found someone that accomplishes this with a very clever usage of the native Image object.
From their source, this is the main function (it has dependences on other parts of the source but you get the idea).
function Pinger_ping(ip...
What does the CSS rule “clear: both” do?
...ar: both; is required or what it does...
Generally designers float the elements, left or to the right, which creates an empty space on the other side which allows other elements to take up the remaining space.
Why do they float elements?
Elements are floated when the designer needs 2 block level ...
How to discard local commits in Git?
I'd been working on something, and decided it was completely screwed...after having committed some of it. So I tried the following sequence:
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Git Alias - Multiple Commands and Parameters
...to create an alias that uses both multiple Git commands and positional parameters. There are Stackoverflow pages for each, and it would appear painfully obvious to do both, but I am having trouble.
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How can I list all commits that changed a specific file?
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The --follow works for a particular file
git log --follow -- filename
Difference to other solutions given
Note that other solutions include git log path (without the --follow). That approach is handy if you want to track e.g. changes in a directory, but stumbles when files were renamed (t...
How to move a model between two Django apps (Django 1.7)
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I am removing the old answer as may result in data loss. As ozan mentioned, we can create 2 migrations one in each app. The comments below this post refer to my old answer.
First migration to remove model from 1st app.
$ python manage.py makemigrations old_app --empty
Edit migration fi...
Can someone explain the right way to use SBT?
...off the closet on this! I don't understand SBT. There, I said it, now help me please.
4 Answers
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How do I horizontally center a span element inside a div
... links 'view website' and 'view project' inside the surrounding div. Can someone point out what I need to do to make this work?
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sql server invalid object name - but tables are listed in SSMS tables list
...ction.
NOTE: Your cursor must be in the query editor for the IntelliSense menu to be visible.
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Determine font color based on background color
...ebsite for instance) that lets a user customize the background color for some section but not the font color (to keep number of options to a minimum), is there a way to programmatically determine if a "light" or "dark" font color is necessary?
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