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Diffstat (limited to 'deps/npm/node_modules/cli-table2/node_modules/lodash/lang/isError.js')
-rw-r--r-- | deps/npm/node_modules/cli-table2/node_modules/lodash/lang/isError.js | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/deps/npm/node_modules/cli-table2/node_modules/lodash/lang/isError.js b/deps/npm/node_modules/cli-table2/node_modules/lodash/lang/isError.js new file mode 100644 index 0000000000..a7bb0d0946 --- /dev/null +++ b/deps/npm/node_modules/cli-table2/node_modules/lodash/lang/isError.js @@ -0,0 +1,36 @@ +var isObjectLike = require('../internal/isObjectLike'); + +/** `Object#toString` result references. */ +var errorTag = '[object Error]'; + +/** Used for native method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ +var objToString = objectProto.toString; + +/** + * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`, + * `SyntaxError`, `TypeError`, or `URIError` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an error object, else `false`. + * @example + * + * _.isError(new Error); + * // => true + * + * _.isError(Error); + * // => false + */ +function isError(value) { + return isObjectLike(value) && typeof value.message == 'string' && objToString.call(value) == errorTag; +} + +module.exports = isError; |