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x/lodash/attempt.js

A modern JavaScript utility library delivering modularity, performance, & extras.
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define(['./_apply', './_baseRest', './isError'], function(apply, baseRest, isError) {
/** Used as a safe reference for `undefined` in pre-ES5 environments. */ var undefined;
/** * 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 _ * @since 3.0.0 * @category Util * @param {Function} func The function to attempt. * @param {...*} [args] The arguments to invoke `func` with. * @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 = baseRest(function(func, args) { try { return apply(func, undefined, args); } catch (e) { return isError(e) ? e : new Error(e); } });
return attempt;});