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Check image width and height before upload with Javascript
...eObjectURL(objectUrl);
};
img.src = objectUrl;
}
});
Demo: http://jsfiddle.net/4N6D9/1/
I take it you realize this is only supported in a few browsers. Mostly firefox and chrome, could be opera as well by now.
P.S. The URL.createObjectURL() method has been removed from the Me...
Two divs, one fixed width, the other, the rest
... You need to swap the order of the divs, like in my answer and my demo. right then left.
– thirtydot
Jun 26 '11 at 22:44
1
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Bootstrap Modal immediately disappearing
...robust at giving you a picture of everything loaded on a page.
A (Broken) Demo
Here's a demo of what happens when you load both the bootstrap.js and bootstrap-modal.js (just to confirm your experience):
Plunker
If you scroll down to the bottom of the source on that page, you can remove or commen...
Quick and easy file dialog in Python?
...file_dialog.FileName)
If you also miss more complex user interface - see Demo folder
in pythonnet git.
I'm not sure about portability to other OS's, haven't tried, but .net 5 is planned to be ported to multiple OS's (Search ".net 5 platforms", https://devblogs.microsoft.com/dotnet/introducing-net...
How do I create an HTML table with a fixed/frozen left column and a scrollable body?
...reates fixed headers and/or columns.
Toggle fixed column to be true on the demo page to see it in action.
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Creating a Radial Menu in CSS
..., no SVG, no images (other than the background on the root element).
2015 demo
Screenshots
Chrome 43:
Firefox 38:
IE 11:
Code
The HTML is pretty simple. I'm using the checkbox hack to reveal/ hide the menu.
<input type='checkbox' id='t'/>
<label for='t'>✰</label>
&l...
List comprehension: Returning two (or more) items for each item
...
Double list comprehension:
[f(x) for x in range(5) for f in (f1,f2)]
Demo:
>>> f1 = lambda x: x
>>> f2 = lambda x: 10*x
>>> [f(x) for x in range(5) for f in (f1,f2)]
[0, 0, 1, 10, 2, 20, 3, 30, 4, 40]
...
Timeout on a function call
..., end=', ', flush=True)
sleep(1)
print('countdown finished')
Demo:
>>> countdown(3)
countdown started
3, 2, 1, 0, countdown finished
>>> countdown(10)
countdown started
10, 9, 8, 7, 6, countdown took too long
Traceback (most recent call last):
File "<stdin>",...
What is the best way to trigger onchange event in react js
...pdating the input's state in response. The two-way binding utils more as a demo than anything else; they're included in addons only to emphasize the fact that pure two-way binding isn't appropriate for most applications and that you usually need more application logic to describe the interactions in...
How to vertically center a container in Bootstrap?
...splay: flex;
align-items: center;
}
Important notes (Considered in the demo):
A percentage values of height or min-height properties is relative to the height of the parent element, therefore you should specify the height of the parent explicitly.
Vendor prefixed / old flexbox syntax omitted i...