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Why does substring slicing with index out of range work?
...t-ins) doesn't cause an error.
It might be surprising at first, but it makes sense when you think about it. Indexing returns a single item, but slicing returns a subsequence of items. So when you try to index a nonexistent value, there's nothing to return. But when you slice a sequence outside of ...
Values of disabled inputs will not be submitted
...:
Disabled controls do not receive focus.
Disabled controls are skipped in tabbing navigation.
Disabled controls cannot be successful.
The following elements support the disabled attribute: BUTTON, INPUT,
OPTGROUP, OPTION, SELECT, and TEXTAREA.
This attribute is inherited ...
How do I calculate percentiles with python/numpy?
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You might be interested in the SciPy Stats package. It has the percentile function you're after and many other statistical goodies.
percentile() is available in numpy too.
import numpy as np
a = np.array([1,2,3,4,5])
p = np.percentile(a, 50) # return 50th percentile, e...
Java: function for arrays like PHP's join()?
...Utils class which has a join function which will join arrays together to make a String.
For example:
StringUtils.join(new String[] {"Hello", "World", "!"}, ", ")
Generates the following String:
Hello, World, !
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Which Eclipse version should I use for an Android app?
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Update July 2017:
From ADT Plugin page, the question must be unasked:
The Eclipse ADT plugin is no longer supported, as per this announcement in June 2015.
The Eclipse ADT plugin has many known bugs and potential security bugs that will not be fixed.
You should immediately switch to use...
Remove duplicate values from JS array [duplicate]
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Quick and dirty using jQuery:
var names = ["Mike","Matt","Nancy","Adam","Jenny","Nancy","Carl"];
var uniqueNames = [];
$.each(names, function(i, el){
if($.inArray(el, uniqueNames) === -1) uniqueNames.push(el);
});
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Infinity symbol with HTML
How can I display an infinity symbol (like the one in the picture) using HTML?
9 Answers
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Listing all permutations of a string/integer
A common task in programming interviews (not from my experience of interviews though) is to take a string or an integer and list every possible permutation.
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Switch statement fall-through…should it be allowed? [closed]
...ign, which got me immediately wondering what everyone in the community thinks about switch statement fall-through.
12 Answe...
In Python, how do I read the exif data for an image?
...he dictionary indexed by the actual EXIF tag name strings, try something like:
import PIL.ExifTags
exif = {
PIL.ExifTags.TAGS[k]: v
for k, v in img._getexif().items()
if k in PIL.ExifTags.TAGS
}
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