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Best way to detect that HTML5 is not supported
The standard way to deal with situations where the browser does not support the HTML5 <canvas> tag is to embed some fallback content like:
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How to get certain commit from GitHub project
... Next, change into the newly cloned repository:
cd facebook-ios-sdk
... and use git checkout <COMMIT> to change to the right commit:
git checkout 91f25642453
That will give you a warning, since you're no longer on a branch, and have switched directly to a particular version. (This is kn...
How to stop /#/ in browser with react-router?
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For the versions 1, 2 and 3 of react-router, the correct way to set the route to URL mapping scheme is by passing a history implementation into the history parameter of <Router>. From the histories documentation:
In a nutshell, a history...
Django: “projects” vs “apps”
... ready to build using Django. I'm going to avoid using the terms "project" and "application" in this context, because I'm not clear on their specific meaning in Django.
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What's the point of malloc(0)?
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The C standard (C17 7.22.3/1) says:
If the size of the space requested is zero, the behavior is implementation defined:
either a null pointer is returned, or the behavior is as if the size were some
nonzero value, except that...
Find (and kill) process locking port 3000 on Mac
How do I find (and kill) processes that listen to/use my tcp ports? I'm on mac os x.
31 Answers
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The executable gets signed with invalid entitlements in Xcode
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I grappled with this issue for an hour, and finally found a fix. Turned out the Development Team was different in ProjectTarget and ProjectTests.
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improve t...
Cartesian product of x and y array points into single array of 2D points
I have two numpy arrays that define the x and y axes of a grid. For example:
13 Answers
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Cannot refer to a non-final variable inside an inner class defined in a different method
...TheSoul points out.
This is why it doesn't work:
The variables lastPrice and price are local variables in the main() method. The object that you create with the anonymous class might last until after the main() method returns.
When the main() method returns, local variables (such as lastPrice and...
How do you make an element “flash” in jQuery
I'm brand new to jQuery and have some experience using Prototype. In Prototype, there is a method to "flash" an element — ie. briefly highlight it in another color and have it fade back to normal so that the user's eye is drawn to it. Is there such a method in jQuery? I see fadeIn, fadeOut, and an...