大约有 18,800 项符合查询结果（耗时：0.0162秒） [XML]
Remove duplicate values from JS array [duplicate]
...ple:
function* randomsBelow(limit) {
while (1)
yield Math.floor(Math.random() * limit);
}
// note that randomsBelow is endless
count = 20;
limit = 30;
for (let r of uniqIter(randomsBelow(limit))) {
console.log(r);
if (--count === 0)
break
}
// exerc...
Permutations in JavaScript?
...result = [0];
for (; d; f /= d--) {
result[d] = Math.floor(n / f);
n %= f;
}
return result;
};
/* common methods */
var addProperties = function(dst, src) {
Object.keys(src).forEach(function(p) {
Object.defineP...
What are the recommendations for html tag?
...es to $_SERVER['REQUEST_URI'] in PHP, ${pageContext.request.requestURI} in JSP, and #{request.requestURI} in JSF. Noted should be that MVC frameworks like JSF have tags reducing all this boilerplate and removing the need for <base>. See also a.o. What URL to use to link / navigate to other JSF...
How to parse freeform street/postal address out of text, and into components
...s are the most complex to parse; there you encounter things such as "Fifth Floor" and "Staples Pavillion". That's when a database is a big help.
share
|
improve this answer
|
...
Why is exception handling bad?
...ceptions make sense in code were it's okay to drop the current task on the floor, and where common case code has more importance than error handling. But they require code generation from the compiler.
For example, they are fine in most high-level, user-facing code, such as web and desktop applicat...
Generate a heatmap in MatPlotLib using a scatter data set
...ves regular plane
tessellation (i.e., you can safely re-model your kitchen floor with hexagonal-shaped tiles because you won't have any void space between the tiles when you are finished--not true for all other higher-n, n >= 7, polygons).
(Matplotlib uses the term hexbin plot; so do (AFAIK) a...
Fastest way to determine if an integer's square root is an integer
...p; h != 6 && h != 7 && h != 8)
{
int t = (int) floor( sqrt((double) n) + 0.5 );
return t*t == n;
}
return 0;
}
Eliminating the switch statement had little effect on the C# code.
...
Convert light frequency to RGB?
...return new byte[3];
len -= LEN_MIN;
var index = (int)Math.Floor(len / LEN_STEP);
var offset = len - LEN_STEP * index;
var x = Interpolate(X, index, offset);
var y = Interpolate(Y, index, offset);
var z = Interpolate(Z, index, offset);
var m ...
Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
...isquare)
where square = sqrt $ fromIntegral number
isquare = floor square
factorCount' :: Int -> Int -> Int -> Int -> Int
factorCount' number sqrt candidate0 count0 = go candidate0 count0
where
go candidate count
| candidate > sqrt = count
| number `rem` can...
Evenly distributing n points on a sphere
...ositive integers:
def continued_fraction(r):
while r != 0:
n = floor(r)
yield n
r = 1/(r - n)
Since the fraction part 1/(...) is always between zero and one, a large integer in the continued fraction allows for a particularly good rational approximation: “one divided b...