101/exists.js

common javascript utils that can be required selectively that assume es5+

/**
 * @module {function} 101/exists
 * @type {function}
 */

/**
 * Returns false for null and undefined, true for everything else.
 * @function module:101/exists
 * @param val {*} - value to be existance checked
 * @return {boolean} whether the value exists or not
 */
module.exports = exists;

function exists (val) {
  return val !== undefined && val !== null;
}