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CSS media queries: max-width OR max-height
...{ ... }
The long answer.
There's a lot here, but I've tried to make it information dense, not just fluffy writing. It's been a good chance to learn myself! Take the time to systematically read though and I hope it will be helpful.
Media Queries
Media queries essentially are used in web design ...
Open file dialog box in JavaScript
...is will cause IE to throw an error if you end up submitting the associated form programmatically as well.
– Ray Nicholus
Oct 22 '13 at 21:48
...
Begin, Rescue and Ensure in Ruby?
...rror, ScriptError, Interrupt, SignalException or SystemExit.)
Some blocks form implicit exception blocks. For example, method definitions are implicitly also exception blocks, so instead of writing
def foo
begin
# ...
rescue
# ...
end
end
you write just
def foo
# ...
rescue
# ...
Can I make the foreign key field optional in Django model
...ent because typically if you're going to allow a field to be blank in your form, you're going to also need your database to allow NULL values for that field. The exception is CharFields and TextFields, which in Django are never saved as NULL. Blank values are stored in the DB as an empty string (''...
What's the difference between eval, exec, and compile?
...UE <- return top of stack
'single' is a limited form of 'exec' which accepts a source code containing a single statement (or multiple statements separated by ;) if the last statement is an expression statement, the resulting bytecode also prints the repr of the value of th...
iPad keyboard will not dismiss if modal ViewController presentation style is UIModalPresentationForm
...r reasoning is that the user is often going to be entering data in a modal form so they are trying to be "helpful" and keep the keyboard visible where ordinarily various transitions within the modal view can cause the keyboard to show/hide repeatedly.
edit: here is the response of an Apple engineer...
Read an Excel file directly from a R script
... can obviously loop over them all], included plots, etc.). But for a well-formed, rectangular spreadsheet with plain numbers and character data (i.e., not comma-formatted numbers, dates, formulas with divide-by-zero errors, missing values, etc. etc. ..) I generally have no problem with this process...
Convert Data URI to File then append to FormData
...k is to extract an image file from the canvas object and append it to a FormData object for upload.
14 Answers
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Run command on the Ansible host
... work with command? Because as far as I know we cannot use the param free_form to define the command that will be executed
– Ander
Sep 8 '16 at 4:40
...
Preview an image before it is uploaded
...ogleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form runat="server">
<input type='file' id="imgInp" />
<img id="blah" src="#" alt="your image" />
</form>
Also, you can try this sample here.
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