Function.prototype.toString() - JavaScript | MDN

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Object.prototype.toString

The Function object overrides the toString() method inherited from Object; it does not inherit Object.prototype.toString. For user-defined Function objects, the toString method returns a string containing the source text

Function.prototype.bind()

The Function object overrides the toString() method inherited from Object; it does not inherit Object.prototype.toString. For user-defined Function objects, the toString method returns a string containing the source text

Comparing actual source code and toString results

Comparing actual source code and toString results

Comparing actual source code and toString results

Comparing actual source code and toString results

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This page was last modified on Jul 10, 2025 by MDN contributors.

[Symbol.hasInstance]()

__defineGetter__()

__defineSetter__()

__lookupGetter__()

__lookupSetter__()

propertyIsEnumerable()

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