@typed/lenses/cjs/Lens.js

Strongly-typed functional lenses

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Lens = void 0;
const lambda_1 = require("@typed/lambda");
const objects_1 = require("@typed/objects");
var Lens;
(function (Lens) {
    Lens.create = (get, set) => ({
        get,
        update: lambda_1.curry((f, a) => set(f(get(a)), a)),
    });
    Lens.id = () => Lens.create((a) => a, (_, a) => a);
    Lens.prop = (key) => Lens.create((a) => a[key], (b, a) => objects_1.set(key, b, a));
})(Lens = exports.Lens || (exports.Lens = {}));
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