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Map Tiling Algorithm
...low the edge tiles marked with an X are all green tiles with a tan tile as one or more of their eight neighbouring tiles. With different types of terrain this condition could translate to a tile being an edge tile if it has neighbours of lower terrain-number.
Once all edge tiles are detected the ...
Idiomatic way to wait for multiple callbacks in Node.js
... // yield any promise
var result = yield Promise.resolve(true);
}).catch(onerror);
co(function *(){
// resolve multiple promises in parallel
var a = Promise.resolve(1);
var b = Promise.resolve(2);
var c = Promise.resolve(3);
var res = yield [a, b, c];
console.log(res);
// => [1, ...
How to get the name of enumeration value in Swift?
...thorizedAlways: return "AuthorizedAlways" <etc> } } } - once you've done this, it should work as you'd expect: print("Auth status: (\status))".
– Jeffro
Apr 27 '16 at 19:41
...
Visual Studio 64 bit?
...MK: The office "recreational speculation" doesn't survive the sniff test. Nonetheless, the part of the article relevant to the question (re: VS x64) seems pretty solid.
– Adam Robinson
Mar 25 '10 at 15:00
...
python dataframe pandas drop column using int
...s given here so far will remove all of the columns, which may not be what one is looking for. This may be the case if one is trying to remove duplicate columns except one instance. The example below clarifies this situation:
# make a df with duplicate columns 'x'
df = pd.DataFrame({'x': range(5) ,...
swift case falling through
... as follows:
var testVal = "hello"
var result = 0
switch testVal {
case "one", "two":
result = 1
default:
result = 3
}
Alternatively, you can use the fallthrough keyword:
var testVal = "hello"
var result = 0
switch testVal {
case "one":
fallthrough
case "two":
result = 1
defaul...
When and why are database joins expensive?
...d water.
Chris Date, who in company with Dr Ted Codd was the original proponent of the relational data model, ran out of patience with misinformed arguments against normalisation and systematically demolished them using scientific method: he got large databases and tested these assertions.
I thin...
What is Type-safe?
...me simple examples:
// Fails, Trying to put an integer in a string
String one = 1;
// Also fails.
int foo = "bar";
This also applies to method arguments, since you are passing explicit types to them:
int AddTwoNumbers(int a, int b)
{
return a + b;
}
If I tried to call that using:
int Sum ...
What is “vectorization”?
...
@StephenCanon how can one check whether or not some lines have been vectorized? If one would use objdump, what would one look for in the output of objdump?
– user1823664
Jun 9 '17 at 13:49
...
How to determine if a list of polygon points are in clockwise order?
...l in the case of a non-convex polygon, such as a crescent. Here's a simple one that will work with non-convex polygons (it'll even work with a self-intersecting polygon like a figure-eight, telling you whether it's mostly clockwise).
Sum over the edges, (x2 − x1)(y2 + y1). If the result is positi...