rc-hammer/src/utils/invoke-array-arg.js

use hammerjs in React/ReactNative

import each from './each';
/**
 * @private
 * if the argument is an array, we want to execute the fn on each entry
 * if it aint an array we don't want to do a thing.
 * this is used by all the methods that accept a single and array argument.
 * @param {*|Array} arg
 * @param {String} fn
 * @param {Object} [context]
 * @returns {Boolean}
 */
export default function invokeArrayArg(arg, fn, context) {
  if (Array.isArray(arg)) {
    each(arg, context[fn], context);
    return true;
  }
  return false;
}