Looking at an array filled with various arrays, I am aiming to pinpoint the shortest path available within the paths array.
paths = [
["LEFT", "RIGHT", "RIGHT", "BOTTOM", "TOP"],
["RIGHT", "LEFT", "TOP"],
["TOP", "LEFT"]
];
paths.map((path)=> Math.min(path.length));
Utilize the Array#reduce function.
var routes = [
["LEFT", "RIGHT", "RIGHT", "BOTTOM", "TOP"],
["RIGHT", "LEFT", "TOP"],
["TOP", "LEFT"]
];
console.log(routes.reduce((previous, next) => previous.length > next.length ? next : previous))To find the shortest path, you can utilize the Array sort method and compare the length of each array. This approach appears to be the most direct way.
let routes = [
["LEFT", "RIGHT", "RIGHT", "BOTTOM", "TOP"],
["RIGHT", "LEFT", "TOP"],
["TOP", "LEFT"]
];
const [shortestRoute] = routes.sort((a,b) => a.length - b.length);
console.log(shortestRoute);
If you're looking to gather arrays that are either smaller or of equal length.
let paths = [["LEFT", "RIGHT", "RIGHT", "BOTTOM", "TOP"], ["RIGHT", "LEFT", "TOP"], ["TOP", "LEFT"]],
result = paths.reduce((r, a, i) => {
if (!i || a.length < r[0].length) {
return [a];
}
if (a.length === r[0].length) {
r.push(a);
}
return r;
}, []);
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