'use strict'; var inspect = require('util').inspect; module.exports = function isResolvable(moduleId, options) { if (typeof moduleId !== 'string') { throw new TypeError(inspect(moduleId) + ' is not a string. Expected a valid Node.js module identifier (), for example \'eslint\', \'./index.js\', \'./lib\'.'); } try { require.resolve(moduleId, options); return true; } catch (err) { return false; } };