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Programmatically create a UIView with color gradient
...ew with a gradient color background (A solid color to transparent) at runtime. Is there a way of doing that?
19 Answers
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Best way to detect when a user leaves a web page?
...confirmation). Firefox has a hidden preference in about:config to do the same. In essence this means the user always confirms that the document may be unloaded.
– MJB
Jan 19 '15 at 17:29
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jQuery posting JSON
... should be a stringified JavaScript object:
data: JSON.stringify({ "userName": userName, "password" : password })
To send your formData, pass it to stringify:
data: JSON.stringify(formData)
Some servers also require the application/json content type:
contentType: 'application/json'
There's ...
R memory management / cannot allocate vector of size n Mb
...m when you need to make objects of this size. Use gc() to clear now unused memory, or, better only create the object you need in one session.
If the above cannot help, get a 64-bit machine with as much RAM as you can afford, and install 64-bit R.
If you cannot do that there are many online servi...
Send POST data using XMLHttpRequest
I'd like to send some data using an XMLHttpRequest in JavaScript.
13 Answers
13
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What to do with “Unexpected indent” in python?
... but the one before is not the start of a subblock (e.g. if/while/for statement). All lines of code in a block must start with exactly the same string of whitespace. For instance:
>>> def a():
... print "foo"
... print "bar"
IndentationError: unexpected indent
This one is especiall...
How do I format a long integer as a string without separator in Java?
...e will probably be more straight forward than trying to understand the documentation for MessageFormat :
6 Answers
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How do I launch the Android emulator from the command line?
I'm on Mac, working on Android development from the terminal. I have successfully created the HelloWorld project and now I'm trying to run it from the command line in the Android emulator. Which command runs the emulator for my HelloWorld project?
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Javascript infamous Loop issue? [duplicate]
...'s scopes are function-level, not block-level, and creating a closure just means that the enclosing scope gets added to the lexical environment of the enclosed function.
After the loop terminates, the function-level variable i has the value 5, and that's what the inner function 'sees'.
In the secon...
Is JavaScript supported in an email message?
Is JavaScript supported in an email message?
10 Answers
10
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