escapeSelectorAttributeValueInsideDoubleQuotes.js — react Source File

Source Code

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow
 */

// When passing user input into querySelector(All) the embedded string must not alter
// the semantics of the query. This escape function is safe to use when we know the
// provided value is going to be wrapped in double quotes as part of an attribute selector
// Do not use it anywhere else
// we escape double quotes and backslashes
const escapeSelectorAttributeValueInsideDoubleQuotesRegex = /[\n\"\\]/g;
export default function escapeSelectorAttributeValueInsideDoubleQuotes(
  value: string,
): string {
  return value.replace(
    escapeSelectorAttributeValueInsideDoubleQuotesRegex,
    ch => '\\' + ch.charCodeAt(0).toString(16) + ' ',
  );
}