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Check if object is a jQuery object
...&& (obj instanceof jQuery)) {...
– Harry Pehkonen
Sep 23 '15 at 13:42
That's not such a good example.. more li...
Convert Data URI to File then append to FormData
I've been trying to re-implement an HTML5 image uploader like the one on the Mozilla Hacks site, but that works with WebKit browsers. Part of the task is to extract an image file from the canvas object and append it to a FormData object for upload.
...
Is there a foreach in MATLAB? If so, how does it behave if the underlying data changes?
...
works, but
for i=[1:inf]
% do something
end
does not (because this one would require allocating infinite memory). See Loren's blog for details.
Also note that you can iterate over cell arrays.
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Preview an image before it is uploaded
...or ` $('#blah').attr('src', e.target.result);` when you could have simply done document.getElementById('blah').src=e.target.result)
– EasyBB
Jul 21 '14 at 19:26
5
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How to prevent page scrolling when scrolling a DIV element?
...ll it on the overflowing element.
This solution has an advantage over the one Šime Vidas proposed, as it doesn't overwrite the scrolling behavior - it just blocks it when appropriate.
$.fn.isolatedScroll = function() {
this.bind('mousewheel DOMMouseScroll', function (e) {
var delta = ...
Python import csv to list
...
Pandas is pretty good at dealing with data. Here is one example how to use it:
import pandas as pd
# Read the CSV into a pandas data frame (df)
# With a df you can do many things
# most important: visualize data with Seaborn
df = pd.read_csv('filename.csv', delimiter=','...
How to debug in Django, the good way? [closed]
...the way, I guess I got a routine in debugging my Django code. As this was done early in my coding experience, I sat down and wondered if how I was doing this was ineffective and could be done faster. I usually manage to find and correct the bugs in my code, but I wonder if I should be doing it faste...
How do I clone a range of array elements to a new array?
...hich wasn't obvious in the original question). If you really want a deep clone; something like:
public static T[] SubArrayDeepClone<T>(this T[] data, int index, int length)
{
T[] arrCopy = new T[length];
Array.Copy(data, index, arrCopy, 0, length);
using (MemoryStream ms = new Mem...
@synthesize vs @dynamic, what are the differences?
...e":
Some accessors are created dynamically at runtime, such as certain ones used in CoreData's NSManagedObject class. If you want to declare and use properties for these cases, but want to avoid warnings about methods missing at compile time, you can use the @dynamic directive instead of @synthe...
Convert String to Calendar Object in Java
...e.ENGLISH);
cal.setTime(sdf.parse("Mon Mar 14 16:02:37 GMT 2011"));// all done
note: set Locale according to your environment/requirement
See Also
Javadoc
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