source: trip-planner-front/node_modules/lodash/isNative.js@ 6a3a178

Last change on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1var baseIsNative = require('./_baseIsNative'),
2 isMaskable = require('./_isMaskable');
3
4/** Error message constants. */
5var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.';
6
7/**
8 * Checks if `value` is a pristine native function.
9 *
10 * **Note:** This method can't reliably detect native functions in the presence
11 * of the core-js package because core-js circumvents this kind of detection.
12 * Despite multiple requests, the core-js maintainer has made it clear: any
13 * attempt to fix the detection will be obstructed. As a result, we're left
14 * with little choice but to throw an error. Unfortunately, this also affects
15 * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
16 * which rely on core-js.
17 *
18 * @static
19 * @memberOf _
20 * @since 3.0.0
21 * @category Lang
22 * @param {*} value The value to check.
23 * @returns {boolean} Returns `true` if `value` is a native function,
24 * else `false`.
25 * @example
26 *
27 * _.isNative(Array.prototype.push);
28 * // => true
29 *
30 * _.isNative(_);
31 * // => false
32 */
33function isNative(value) {
34 if (isMaskable(value)) {
35 throw new Error(CORE_ERROR_TEXT);
36 }
37 return baseIsNative(value);
38}
39
40module.exports = isNative;
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