rangeEntries

Find smallest and largest entries.

Alternatives: range, rangeEntries.
Similar: min, max, range.

function rangeEntries(x, fc, fm)
// x:  a map
// fc: compare function (a, b)
// fm: map function (v, k, x)

const map = require('extra-map');

var x = new Map([['a', 1], ['b', 2], ['c', -3], ['d', -4]]);
map.rangeEntries(x);
// → [ [ 'd', -4 ], [ 'b', 2 ] ]

map.rangeEntries(x, (a, b) => Math.abs(a) - Math.abs(b));
// → [ [ 'a', 1 ], [ 'd', -4 ] ]

map.rangeEntries(x, null, v => Math.abs(v));
// → [ [ 'a', 1 ], [ 'd', -4 ] ]

References

• range: MATLAB