@walts81/linq-ts/lib/to-map.js

Typescript/Javascript LINQ implementation library

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.toMap = void 0;
const _common_1 = require("./_common");
Array.prototype.toMap = toMap;
function toMap(getKey, getValue, throwOnDuplicateKey = true) {
    return this.reduce((prev, current, i) => {
        const key = getKey(current, i);
        if (prev.has(key) && throwOnDuplicateKey)
            throw new _common_1.DuplicateKeyException();
        prev.set(key, getValue(current, i));
        return prev;
    }, new Map());
}
exports.toMap = toMap;