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When to favor ng-if vs. ng-show/ng-hide?
...Elements that are not in the DOM have less performance impact and your web app might appear to be faster when using ng-if compared to ng-show/ng-hide. In my experience, the difference is negligible. Animations are possible when using both ng-show/ng-hide and ng-if, with examples for both in the Angu...
Determining the size of an Android view at runtime
I am trying to apply an animation to a view in my Android app after my activity is created. To do this, I need to determine the current size of the view, and then set up an animation to scale from the current size to the new size. This part must be done at runtime, since the view scales to differe...
How do I export UIImage array as a movie?
...has an input of type AVAssetWriterInput, which in turn has a method called appendSampleBuffer: that lets you add individual frames to a video stream. Essentially you’ll have to:
1) Wire the writer:
NSError *error = nil;
AVAssetWriter *videoWriter = [[AVAssetWriter alloc] initWithURL:
[NSURL ...
Good tutorials on XMPP? [closed]
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We simplified the process of creation chat app's under iOS using cocoa pods, you can learn more or download demo code here github.com/processone/demo-xmpp-ios
– Loegic
Jul 24 '15 at 16:36
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Converting JSON data to Java object
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I use it in an android app. It is not the fastest possible solution but it is simple enough to program to justify the lack of performance for the user until now. Maybe in a later version of the app it will be removed for a faster solution.
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What do 'real', 'user' and 'sys' mean in the output of time(1)?
...when the CPU is operating in this mode; these actions are not available to application code. An example of such an action might be manipulation of the MMU to gain access to the address space of another process. Normally, user-mode code cannot do this (with good reason), although it can request sha...
Detect iPad Mini in HTML5
Apple's iPad Mini is a smaller clone of the iPad 2 in more ways than we'd want. In JavaScript, the window.navigator object exposes the same values for the Mini and iPad 2. My tests so far to detect the difference have not lead to success.
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Check for current Node Version
...{
"check-version" : "node checkVersion.js",
"start-server" : "node app.js"
"start" : "npm run check-version && npm run start-server",
"test": "npm run check-version && echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"dep...
How do I copy to the clipboard in JavaScript?
... API documentation on Overriding the copy event.
Allows you to modify what appears on the clipboard from any copy event, can include other formats of data other than plain text.
Not covered here as it doesn't directly answer the question.
General development notes
Don't expect clipboard related ...
How to set environment variables from within package.json
...ironment variable in the script command:
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"scripts": {
"start": "node app.js",
"test": "NODE_ENV=test mocha --reporter spec"
},
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Then use process.env.NODE_ENV in your app.
Note: This is for Mac & Linux only. For Windows refer to the comments.
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