관리-도구

편집 파일: attempt.js

var isError = require('../lang/isError'), restParam = require('../function/restParam'); /** * Attempts to invoke `func`, returning either the result or the caught error * object. Any additional arguments are provided to `func` when it's invoked. * * @static * @memberOf _ * @category Utility * @param {Function} func The function to attempt. * @returns {*} Returns the `func` result or error object. * @example * * // avoid throwing errors for invalid selectors * var elements = _.attempt(function(selector) { * return document.querySelectorAll(selector); * }, '>_>'); * * if (_.isError(elements)) { * elements = []; * } */ var attempt = restParam(function(func, args) { try { return func.apply(undefined, args); } catch(e) { return isError(e) ? e : new Error(e); } }); module.exports = attempt;