@shopgate/pwa-common/helpers/validation/index.js

Common library for the Shopgate Connect PWA.

/**
 * Tests if the prop is an array-object.
 * @param {*} prop The property to test.
 * @return {boolean}
 */
export const isArray = prop => typeof prop === 'object' && prop !== null && prop.constructor === Array;

/**
 * Tests if the prop is an object.
 * @param {*} prop The property to test.
 * @return {boolean}
 */
export const isObject = prop => typeof prop === 'object' && prop !== null && prop.constructor === Object;

/**
 * Checks if a passed value is numeric.
 * @param {*} prop The property to test.
 * @return {boolean}
 */
export const isNumeric = prop =>
// eslint-disable-next-line no-restricted-globals
!Number.isNaN(parseFloat(prop)) && isFinite(prop);

/**
 * Tests if the prop is a number.
 * @param {*} prop The property to test.
 * @return {boolean}
 */
export const isNumber = prop =>
// eslint-disable-next-line no-restricted-globals
typeof prop === 'number' && isFinite(prop);

/**
 * Tests if the prop is an integer.
 * @param {*} prop The property to test.
 * @return {boolean}
 */
export const isInteger = prop => isNumber(prop) && prop % 1 === 0;

/**
 * Tests if the prop is boolean.
 * @param {*} prop The property to test.
 * @return {boolean}
 */
export const isBoolean = prop => typeof prop === 'boolean';

/**
 * Tests if the prop is function.
 * @param {*} prop The property to test.
 * @return {boolean}
 */
export const isFunction = prop => typeof prop === 'function';

/**
 * Tests if the prop is undefined.
 * @param {*} prop The property to test.
 * @return {boolean}
 */
export const isUndefined = prop => typeof prop === 'undefined';

/**
 * Tests if the prop is a promise.
 * @param {*} prop The property to test.
 * @return {boolean}
 */
export const isPromise = prop => prop !== null && (typeof prop === 'object' || typeof prop === 'function') && typeof prop.then === 'function';