Get Browser Viewport Dimensions

"use strict";

function getViewportWidth() {
    var width = void 0;
    if (document.documentElement) {
        width = document.documentElement.clientWidth;
    }

    if (!width && document.body) {
        width = document.body.clientWidth;
    }

    return width || 0;
}
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 *
 * @typechecks
 */

function getViewportHeight() {
    var height = void 0;
    if (document.documentElement) {
        height = document.documentElement.clientHeight;
    }

    if (!height && document.body) {
        height = document.body.clientHeight;
    }

    return height || 0;
}

/**
 * Gets the viewport dimensions including any scrollbars.
 */
function getViewportDimensions() {
    return {
        width: window.innerWidth || getViewportWidth(),
        height: window.innerHeight || getViewportHeight()
    };
}

/**
 * Gets the viewport dimensions excluding any scrollbars.
 */
function getViewportDimensionsWithoutScrollbars() {
    return {
        width: getViewportWidth(),
        height: getViewportHeight()
    };
}

// module.exports = getViewportDimensions;