isError.js
991 Bytes
'use strict';
Object.defineProperty(exports, '__esModule', {
value: true
});
exports.default = isError;
var _prettyFormat = _interopRequireDefault(require('pretty-format'));
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {default: obj};
}
/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
function isError(potentialError) { // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
// duck-type Error, see #2549
const isError =
potentialError !== null &&
typeof potentialError === 'object' &&
typeof potentialError.message === 'string' &&
typeof potentialError.name === 'string';
const message = isError
? null
: `Failed: ${(0, _prettyFormat.default)(potentialError, {
maxDepth: 3
})}`;
return {
isError,
message
};
}