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How to implement “select all” check box in HTML?
I have an HTML page with multiple checkboxes.
29 Answers
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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...
What does the `forall` keyword in Haskell/GHC do?
I'm beginning to understand how the forall keyword is used in so-called "existential types" like this:
8 Answers
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Primary key/foreign Key naming convention [closed]
In our dev group we have a raging debate regarding the naming convention for Primary and Foreign Keys. There's basically two schools of thought in our group:
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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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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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How can you detect the version of a browser?
I've been searching around for code that would let me detect if the user visiting the website has Firefox 3 or 4. All I have found is code to detect the type of browser but not the version.
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How do you remove a specific revision in the git history?
Suppose your git history looks like this:
9 Answers
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GitHub pull request showing commits that are already in target branch
I'm trying to review a pull request on GitHub to a branch that isn't master. The target branch was behind master and the pull request showed commits from master, so I merged master and pushed it to GitHub, but the commits and diff for them still appear in the pull request after refreshing. I've doub...