src/utils/is-empty-sourcemap.js
import isEmptyArray from './is-empty-array.js'
/**
* True if the sourcemap has no mappings, it is empty
* @param {Object} map - sourcemap json
* @returns {boolean} true if empty
*/
export default function isEmptySourcemap(map) {
return !map || isEmptyArray(map.mappings)
}