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How JavaScript uses the isNative function

2025-02-25 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

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This article is about how JavaScript uses the isNative function. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

IsNative: determine whether value is a built-in function in the browser

The body code block after the built-in function toString is [native code], while the non-built-in function is the related code, so the non-built-in function can be copied (after toString, the head and tail are pinched and then transferred by Function)

Function isNative (value) {return typeof value = = 'function' & & / native code/.test (value.toString ())} Thank you for reading! This is the end of the article on "how to use the isNative function in JavaScript". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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