Installing dependencies.

node_modules/p-map/index.js

@@ -0,0 +1,72 @@
+'use strict';
+
+const pMap = (iterable, mapper, options) => new Promise((resolve, reject) => {
+	options = Object.assign({
+		concurrency: Infinity
+	}, options);
+
+	if (typeof mapper !== 'function') {
+		throw new TypeError('Mapper function is required');
+	}
+
+	const {concurrency} = options;
+
+	if (!(typeof concurrency === 'number' && concurrency >= 1)) {
+		throw new TypeError(`Expected \`concurrency\` to be a number from 1 and up, got \`${concurrency}\` (${typeof concurrency})`);
+	}
+
+	const ret = [];
+	const iterator = iterable[Symbol.iterator]();
+	let isRejected = false;
+	let isIterableDone = false;
+	let resolvingCount = 0;
+	let currentIndex = 0;
+
+	const next = () => {
+		if (isRejected) {
+			return;
+		}
+
+		const nextItem = iterator.next();
+		const i = currentIndex;
+		currentIndex++;
+
+		if (nextItem.done) {
+			isIterableDone = true;
+
+			if (resolvingCount === 0) {
+				resolve(ret);
+			}
+
+			return;
+		}
+
+		resolvingCount++;
+
+		Promise.resolve(nextItem.value)
+			.then(element => mapper(element, i))
+			.then(
+				value => {
+					ret[i] = value;
+					resolvingCount--;
+					next();
+				},
+				error => {
+					isRejected = true;
+					reject(error);
+				}
+			);
+	};
+
+	for (let i = 0; i < concurrency; i++) {
+		next();
+
+		if (isIterableDone) {
+			break;
+		}
+	}
+});
+
+module.exports = pMap;
+// TODO: Remove this for the next major release
+module.exports.default = pMap;