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Edit File: validator.js

'use strict';

import {VERSION} from '../env/data.js';
import AxiosError from '../core/AxiosError.js';

const validators = {};

// eslint-disable-next-line func-names
['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {
  validators[type] = function validator(thing) {
    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;
  };
});

const deprecatedWarnings = {};

/**
 * Transitional option validator
 *
 * @param {function|boolean?} validator - set to false if the transitional option has been removed
 * @param {string?} version - deprecated version / removed since version
 * @param {string?} message - some message with additional info
 *
 * @returns {function}
 */
validators.transitional = function transitional(validator, version, message) {
  function formatMessage(opt, desc) {
    return '[Axios v' + VERSION + '] Transitional option \'' + opt + '\'' + desc + (message ? '. ' + message : '');
  }

// eslint-disable-next-line func-names
  return (value, opt, opts) => {
    if (validator === false) {
      throw new AxiosError(
        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),
        AxiosError.ERR_DEPRECATED
      );
    }

if (version && !deprecatedWarnings[opt]) {
      deprecatedWarnings[opt] = true;
      // eslint-disable-next-line no-console
      console.warn(
        formatMessage(
          opt,
          ' has been deprecated since v' + version + ' and will be removed in the near future'
        )
      );
    }

return validator ? validator(value, opt, opts) : true;
  };
};

/**
 * Assert object's properties type
 *
 * @param {object} options
 * @param {object} schema
 * @param {boolean?} allowUnknown
 *
 * @returns {object}
 */

export default {
  assertOptions,
  validators
};

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