awesome-string/src/helper/number/nan_default.js

The ultimate JavaScript string library

/**
 * If `value` is `NaN`, return `defaultValue`. In other case returns `value`.
 *
 * @ignore
 * @function nanDefault
 * @param {*} value The value to verify.
 * @param {*} defaultValue The default value.
 * @return {*} Returns `defaultValue` if `value` is `NaN`, otherwise `defaultValue`.
 */
export default function nanDefault(value, defaultValue) {
  return value !== value ? defaultValue : value;
}