Published
Edited
Apr 12, 2022
1 fork
1 star
x = []
function* permute(arr) {
if (arr.length <= 1) {
yield Array.from(arr);
return;
}
for (let i = arr.length; i-- > 0; ) {
const x = arr.shift();
for (let sub of permute(arr)) {
sub.unshift(x);
yield sub;
}
arr.push(x);
}
}
p = [...permute([1, 2, 3, 4, 5, 6, 7, 8, 9])]
sums = _(p)
.map((a) => _.chunk(a, 3).map((b) => b[0] * 100 + b[1] * 10 + b[2]))
.groupBy(_.sum)
.value()
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
