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Preview an image before it is uploaded
.... The most efficient way would be to use URL.createObjectURL() on the File from your <input>. Pass this URL to img.src to tell the browser to load the provided image.
Here's an example:
<input type="file" accept="image/*" onchange="loadFile(event)">
<img id="output"/>
<...
void in C# generics?
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(Joke) And he can still return void from those would-be-void methods, with return System.Runtime.Serialization.FormatterServices.GetUninitializedObject(typeof(void));. It will be a boxed void, though.
– Jeppe Stig Nielsen
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Why can't an anonymous method be assigned to var?
...sal for an Eric Lippert book of SO answers. Suggested title: "Reflections From The Stack"
– Adam Rackis
Feb 17 '11 at 20:54
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SAML vs federated login with OAuth
...irways and Hertz. There is no shared set of credentials that can take you from one site to another, but lets say Hertz wants to offer a "deal" to US Airways. (Granted I know this is an extreme example, but bear with me). After buying a flight, they will offer a free rental car to its Chairman membe...
Multiple variables in a 'with' statement?
... docs at docs.python.org/library/contextlib.html#contextlib.nested differs from the standard nested with blocks. The managers are created in order before entering the with blocks: m1, m2, m3 = A(), B(), C() If B() or C() fails with exception, then your only hope of properly finalizing A() is the g...
How to check Django version
...der Linux and want to check the Python version you're using, run python -V from the command line.
If you want to check the Django version, open a Python console and type
>>> import django
>>> django.VERSION
(2, 0, 0, 'final', 0)
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What is the most appropriate way to store user settings in Android application
...pplication's SharedPreferences are sandboxed to prevent other applications from being able to access the values so there's some security there, but physical access to a phone could potentially allow access to the values.
If possible I'd consider modifying the server to use a negotiated token for pr...
What does “not run” mean in R help pages?
...on an R help page the phrase "not run" appears in comments. Check out this from the help page for "with()":
5 Answers
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How to show soft-keyboard when edittext is focused
...dManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(yourEditText.getWindowToken(), 0);
This works for using it in a dialog
public void showKeyboard(){
InputMethodManager inputMethodManager = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD...
How to Define Callbacks in Android?
...ires me to edit the source path on it. So how would i carry out "callBack" from an old activity to a new activity?
– Antoine Murion
Apr 20 '15 at 8:41
3
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