ut2/lib/tryit.js

一个现代 JavaScript 实用工具库。[点击查看在线文档]。

'use strict';

var tslib = require('tslib');
var native = require('./internals/native.js');
var isPromiseLike = require('./isPromiseLike.js');

var tryit = function (fn) {
    return function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        try {
            var result = fn.apply(void 0, tslib.__spreadArray([], tslib.__read(args), false));
            if (isPromiseLike(result)) {
                return result
                    .then(function (res) {
                    return [null, res];
                })
                    .catch(function (err) {
                    return [err, native.nativeUndefined];
                });
            }
            return [null, result];
        }
        catch (err) {
            return [err, native.nativeUndefined];
        }
    };
};

module.exports = tryit;