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Understanding the map function
...tr(x) for x in iterable ]
b = time.clock() - b
print(a,b)
test1(range(2000000)) # Prints ~1.7e-5s ~8s
test2(range(2000000)) # Prints ~9s ~8s
As you can see initializing the map function takes almost no time at all. However iterating through the map object takes longer than sim...
Selecting text in an element (akin to highlighting with your mouse)
... node = document.getElementById(node);
if (document.body.createTextRange) {
const range = document.body.createTextRange();
range.moveToElementText(node);
range.select();
} else if (window.getSelection) {
const selection = window.getSelection();
...
how to return index of a sorted list? [duplicate]
...index array instead.
>>> s = [2, 3, 1, 4, 5]
>>> sorted(range(len(s)), key=lambda k: s[k])
[2, 0, 1, 3, 4]
>>>
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LINQ equivalent of foreach for IEnumerable
...entially in another thread. If using "foreach", this could produce very strange and potentially non-deterministic results.
The following test using "ForEach" extension method passes:
[Test]
public void ForEachExtensionWin()
{
//Yes, I know there is an Observable.Range.
var values = Enumer...
How do I make an attributed string using Swift?
..., which starts at index 17 and has a length of 7. Notice that this is an NSRange and not a Swift Range. (See this answer for more about Ranges.) The addAttribute method lets us put the attribute key name in the first spot, the attribute value in the second spot, and the range in the third spot.
var...
Convert a number range to another range, maintaining ratio
I'm trying to convert one range of numbers to another, maintaining ratio. Maths is not my strong point.
18 Answers
...
How to use a variable to specify column name in ggplot
...> [[1]]
#>
#> [[2]]
# combine all plots
library(egg)
ggarrange(plots = plot_list,
nrow = 2,
labels = c('A)', 'B)'))
Created on 2019-04-04 by the reprex package (v0.2.1.9000)
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How do Python's any and all functions work?
...onsumed. For example,
>>> multiples_of_6 = (not (i % 6) for i in range(1, 10))
>>> any(multiples_of_6)
True
>>> list(multiples_of_6)
[False, False, False]
Here, (not (i % 6) for i in range(1, 10)) is a generator expression which returns True if the current number within...
Set cursor position on contentEditable
...y fail in IE. I'm providing it as a starting point. IE doesn't support DOM Range.
var editable = document.getElementById('editable'),
selection, range;
// Populates selection and range variables
var captureSelection = function(e) {
// Don't capture selection outside editable region
var...
Creating functions in a loop
...rguments are evaluated immediately when the function is defined:
for i in range(3):
def f(i=i): # <- right here is the important bit
return i
functions.append(f)
To give a little bit of insight into how/why this works: A function's default arguments are stored as an attribute...