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When should I use the “strictfp” keyword in java?
...
leeway is granted for an
implementation to use an extended
exponent range to represent
intermediate results; the net effect,
roughly speaking, is that a
calculation might produce "the correct
answer" in situations where exclusive
use of the float value set or double
value set migh...
How can I detect if a file is binary (non-text) in python?
...1) behavior:
>>> textchars = bytearray({7,8,9,10,12,13,27} | set(range(0x20, 0x100)) - {0x7f})
>>> is_binary_string = lambda bytes: bool(bytes.translate(None, textchars))
Example:
>>> is_binary_string(open('/usr/bin/python', 'rb').read(1024))
True
>>> is_binar...
Most efficient way to reverse a numpy array
... ],
labels=["a[::-1]", "ascontiguousarray(a[::-1])", "fliplr"],
n_range=[2 ** k for k in range(25)],
xlabel="len(a)",
logx=True,
logy=True,
)
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...
How can I cast int to enum?
...
Just cast it:
MyEnum e = (MyEnum)3;
You can check if it's in range using Enum.IsDefined:
if (Enum.IsDefined(typeof(MyEnum), 3)) { ... }
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How do I get indices of N maximum values in a NumPy array?
...t;>> a = numpy.array([1, 3, 2, 4, 5])
>>> heapq.nlargest(3, range(len(a)), a.take)
[4, 3, 1]
For regular Python lists:
>>> a = [1, 3, 2, 4, 5]
>>> heapq.nlargest(3, range(len(a)), a.__getitem__)
[4, 3, 1]
If you use Python 2, use xrange instead of range.
Source...
Remove all child elements of a DOM node in JavaScript
...astest DOM manipulation method (still slower than the previous two) is the Range removal, but ranges aren't supported until IE9.
var range = document.createRange();
range.selectNodeContents(node);
range.deleteContents();
The other methods mentioned seem to be comparable, but a lot slower than inn...
What is the concept of erasure in generics in Java?
...d Jan 19 '18 at 21:48
Aniket Sahrawat
9,70522 gold badges2323 silver badges5454 bronze badges
answered Nov 24 '08 at 7:25
...
case-insensitive list sorting, without lowercasing the result?
...t this way for Python 3.3:
def sortCaseIns(lst):
lst2 = [[x for x in range(0, 2)] for y in range(0, len(lst))]
for i in range(0, len(lst)):
lst2[i][0] = lst[i].lower()
lst2[i][1] = lst[i]
lst2.sort()
for i in range(0, len(lst)):
lst[i] = lst2[i][1]
Then yo...
How to control the line spacing in UILabel
...ft Answer")
attrString.addAttribute(.paragraphStyle, value:paragraphStyle, range:NSMakeRange(0, attrString.length))
var tableViewCell = NSTableCellView()
tableViewCell.textField.attributedStringValue = attrString
"Short answer: you can't. To change the spacing between lines of text, you will ha...
How to make a background 20% transparent on Android
...e 20%, you know the opaque percentage value is 80% (this is 100-20=80)
The range for the alpha channel is 8 bits (2^8=256), meaning the range goes from 0 to 255.
Project the opaque percentage into the alpha range, that is, multiply the range (255) by the percentage. In this example 255 * 0.8 = 204. ...