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Last change
on this file since ba17441 was a762898, checked in by istevanoska <ilinastevanoska@…>, 5 months ago |
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File size:
680 bytes
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| 1 | const functionToString = Function.prototype.toString;
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| 2 | const REGEXP_SYNTAX_CHARS = /[\\^$.*+?()[\]{}|]/g;
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| 3 | const IS_NATIVE_FUNCTION_REGEXP = RegExp(`^${functionToString
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| 4 | .call(Object.prototype.hasOwnProperty)
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| 5 | .replace(REGEXP_SYNTAX_CHARS, '\\$&')
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| 6 | .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?')}$`);
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| 7 | function isNative(value) {
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| 8 | if (typeof value !== 'function') {
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| 9 | return false;
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| 10 | }
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| 11 | if (globalThis?.['__core-js_shared__'] != null) {
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| 12 | throw new Error('Unsupported core-js use. Try https://npms.io/search?q=ponyfill.');
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| 13 | }
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| 14 | return IS_NATIVE_FUNCTION_REGEXP.test(functionToString.call(value));
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| 15 | }
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| 16 |
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| 17 | export { isNative };
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