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What is the difference between pip and conda?
I know pip is a package manager for python packages. However, I saw the installation on IPython's website use conda to install IPython.
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What is a callback function?
...often confused by what a callback is because of the name of the damned thing.
A callback function is a function which is:
accessible by another function, and
is invoked after the first function if that first function completes
A nice way of imagining how a callback function works is that it is ...
what is “strict mode” and how is it used?
I've been looking over the JavaScript reference on the Mozilla Developer Network, and I came across something called "strict mode" . I read it over and I'm having trouble understanding what it does. Can someone briefly explain (in general) what its purpose is and how it is useful?
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Override devise registrations controller
I have added a field to the sign-up form that is based on a different model, see How do I use nested attributes with the devise model for the gory details. This part is working fine.
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Go to first line in a file in vim?
How do I go to first line in a file in vim ?
4 Answers
4
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HTML5 Canvas Resize (Downscale) Image High Quality?
I use html5 canvas elements to resize images im my browser. It turns out that the quality is very low. I found this: Disable Interpolation when Scaling a <canvas> but it does not help to increase the quality.
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How to implement “select all” check box in HTML?
I have an HTML page with multiple checkboxes.
29 Answers
29
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Java executors: how to be notified, without blocking, when a task completes?
...e a callback interface to receive whatever parameters you want to pass along in the completion notification. Then invoke it at the end of the task.
You could even write a general wrapper for Runnable tasks, and submit these to ExecutorService. Or, see below for a mechanism built into Java 8.
clas...
Get selected subcommand with argparse
When I use subcommands with python argparse, I can get the selected arguments.
2 Answers
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Difference between the 'controller', 'link' and 'compile' functions when defining a directive
Some places seem to use the controller function for directive logic and others use link. The tabs example on the angular homepage uses controller for one and link for another directive. What is the difference between the two?
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