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Canvas is stretched when using CSS but normal with “width” / “height” properties
...t my canvas to have a relative size? That is to say, how to mimic a width: 100%; css property?
– Maxbester
Mar 7 '13 at 8:00
1
...
Are tuples more efficient than lists in Python?
...lookups and unpacking:
$ python3.6 -m timeit -s 'a = (10, 20, 30)' 'a[1]'
10000000 loops, best of 3: 0.0304 usec per loop
$ python3.6 -m timeit -s 'a = [10, 20, 30]' 'a[1]'
10000000 loops, best of 3: 0.0309 usec per loop
$ python3.6 -m timeit -s 'a = (10, 20, 30)' 'x, y, z = a'
10000000 loops, bes...
How to draw a rounded Rectangle on HTML Canvas?
... "rgb(255, 0, 0)";
ctx.fillStyle = "rgba(255, 255, 0, .5)";
roundRect(ctx, 100, 5, 100, 100, 20, true);
// Manipulate it again
ctx.strokeStyle = "#0f0";
ctx.fillStyle = "#ddd";
// Different radii for each corner, others default to 0
roundRect(ctx, 300, 5, 200, 100, {
tl: 50,
br: 25
}, true);
/*...
MySQL Query GROUP BY day / month / year
..._date), MONTH(record_date), COUNT(*)
FROM stats
GROUP BY YEAR(record_date)*100 + MONTH(record_date)
I compared these versions on a big table with 1,357,918 rows (innodb),
and the 2nd version appears to have better results.
version1 (average of 10 executes): 1.404 seconds
version2 (average of 10...
What are the differences between NP, NP-Complete and NP-Hard?
...to post it here. Can you please help me here? stackoverflow.com/questions/21005651/…
– Srikanth
Jan 8 '14 at 21:09
I...
Scatter plot and Color mapping in Python
...le
import numpy as np
import matplotlib.pyplot as plt
x = np.random.rand(100)
y = np.random.rand(100)
t = np.arange(100)
plt.scatter(x, y, c=t)
plt.show()
Here you are setting the color based on the index, t, which is just an array of [1, 2, ..., 100].
Perhaps an easier-to-understand example ...
Can you create nested WITH clauses for Common Table Expressions?
...NT(1) AS count FROM dual)
union all
select 100 AS CT from dual
)
select CT FROM A
share
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foll...
Can PostgreSQL index array columns?
...
+100
@Tregoreg raised a question in the comment to his offered bounty:
I didn't find the current answers working. Using GIN index on
...
Determine if string is in list in JavaScript
...
+100
EcmaScript 6
If you're using ES6, you can construct an array of the items, and use includes:
['a', 'b', 'c'].includes('b')
This has...
How to detect internet speed in JavaScript?
... function showResults() {
var duration = (endTime - startTime) / 1000;
var bitsLoaded = downloadSize * 8;
var speedBps = (bitsLoaded / duration).toFixed(2);
var speedKbps = (speedBps / 1024).toFixed(2);
var speedMbps = (speedKbps / 1024).toFixed(2);
...