Merge branch 'Master' into 'Pipedrive-OAuth2-support'

packages/nodes-base/nodes/utils/utilities.ts

@@ -0,0 +1,57 @@
+/**
+ * Creates an array of elements split into groups the length of `size`.
+ * If `array` can't be split evenly, the final chunk will be the remaining
+ * elements.
+ *
+ * @param {Array} array The array to process.
+ * @param {number} [size=1] The length of each chunk
+ * @returns {Array} Returns the new array of chunks.
+ * @example
+ *
+ * chunk(['a', 'b', 'c', 'd'], 2)
+ * // => [['a', 'b'], ['c', 'd']]
+ *
+ * chunk(['a', 'b', 'c', 'd'], 3)
+ * // => [['a', 'b', 'c'], ['d']]
+ */
+export function chunk(array: any[], size = 1) { // tslint:disable-line:no-any
+	const length = array == null ? 0 : array.length;
+	if (!length || size < 1) {
+		return [];
+	}
+	let index = 0;
+	let resIndex = 0;
+	const result = new Array(Math.ceil(length / size));
+
+	while (index < length) {
+		result[resIndex++] = array.slice(index, (index += size));
+	}
+	return result;
+}
+
+/**
+ * Takes a multidimensional array and converts it to a one-dimensional array.
+ *
+ * @param {Array} nestedArray The array to be flattened.
+ * @returns {Array} Returns the new flattened array.
+ * @example
+ *
+ * flatten([['a', 'b'], ['c', 'd']])
+ * // => ['a', 'b', 'c', 'd']
+ *
+ */
+export function flatten(nestedArray: any[][]) { // tslint:disable-line:no-any
+	const result = [];
+
+	(function loop(array: any[]) { // tslint:disable-line:no-any
+		for (let i = 0; i < array.length; i++) {
+			if (Array.isArray(array[i])) {
+				loop(array[i]);
+			} else {
+				result.push(array[i]);
+			}
+		}
+	})(nestedArray);
+
+	return result;
+}