interpolate

Estimate new values between existing ones.

Similar: interleave, intermix, interpolate, intersperse.

function interpolate(x, fc)
// x:  an iterable
// fc: combine function (a, b)

const xiterable = require('extra-iterable');

var x = [1, 2, 3];
[...xiterable.interpolate(x, (a, b) => (a + b)/2)];
// → [1, 1.5, 2, 2.5, 3]