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37 lines
961 B
JavaScript
37 lines
961 B
JavaScript
var baseGetTag = require('./_baseGetTag'),
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isObjectLike = require('./isObjectLike'),
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isPlainObject = require('./isPlainObject');
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/** `Object#toString` result references. */
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var domExcTag = '[object DOMException]',
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errorTag = '[object Error]';
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/**
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* Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
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* `SyntaxError`, `TypeError`, or `URIError` object.
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*
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* @static
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* @memberOf _
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* @since 3.0.0
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* @category Lang
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is an error object, else `false`.
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* @example
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*
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* _.isError(new Error);
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* // => true
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*
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* _.isError(Error);
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* // => false
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*/
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function isError(value) {
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if (!isObjectLike(value)) {
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return false;
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}
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var tag = baseGetTag(value);
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return tag == errorTag || tag == domExcTag ||
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(typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
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}
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module.exports = isError;
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