reduce

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Subhajit Sahu edited this page Jun 17, 2020 · 14 revisions

Reduces values to a single value. 🏃 📼 📦 🌔 📒

Similar: map, reduce, filter, filterAt, reject, rejectAt.

entries.reduce(x, fr, [acc]);
// x:   entries
// fr:  reduce function (acc, v, k, x)
// acc: initial value

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

var x = [['a', 1], ['b', 2], ['c', 3], ['d', 4]];
entries.reduce(x, (acc, v) => acc+v);
// 10

entries.reduce(x, (acc, v) => acc+v, 100);
// 110

references