lodash/internal/assignDefaults.js

/**
 * Used by `_.defaults` to customize its `_.assign` use.
 *
 * @private
 * @param {*} objectValue The destination object property value.
 * @param {*} sourceValue The source object property value.
 * @returns {*} Returns the value to assign to the destination object.
 */
function assignDefaults(objectValue, sourceValue) {
  return typeof objectValue == 'undefined' ? sourceValue : objectValue;
}

module.exports = assignDefaults;