| /*--------------------------------------------------------------------------------------------- |
| * Copyright (c) Microsoft Corporation. All rights reserved. |
| * Licensed under the MIT License. See License.txt in the project root for license information. |
| *--------------------------------------------------------------------------------------------*/ |
| 'use strict'; |
| /** |
| * Takes a sorted array and a function p. The array is sorted in such a way that all elements where p(x) is false |
| * are located before all elements where p(x) is true. |
| * @returns the least x for which p(x) is true or array.length if no element fullfills the given function. |
| */ |
| export function findFirst(array, p) { |
| var low = 0, high = array.length; |
| if (high === 0) { |
| return 0; // no children |
| } |
| while (low < high) { |
| var mid = Math.floor((low + high) / 2); |
| if (p(array[mid])) { |
| high = mid; |
| } |
| else { |
| low = mid + 1; |
| } |
| } |
| return low; |
| } |
| export function includes(array, item) { |
| return array.indexOf(item) !== -1; |
| } |
| export function union() { |
| var arrays = []; |
| for (var _i = 0; _i < arguments.length; _i++) { |
| arrays[_i] = arguments[_i]; |
| } |
| var result = []; |
| for (var _a = 0, arrays_1 = arrays; _a < arrays_1.length; _a++) { |
| var array = arrays_1[_a]; |
| for (var _b = 0, array_1 = array; _b < array_1.length; _b++) { |
| var item = array_1[_b]; |
| if (!includes(result, item)) { |
| result.push(item); |
| } |
| } |
| } |
| return result; |
| } |