objectToString

function objectToString(value: unknown): string;

Object.prototype.toString.call(value), in a form that is safe to call on anything, including null and undefined. Several guards in this library are built on it, because the tag survives crossing a frame boundary where instanceof does not.

Parameters

Parameter	Type	Description
`value`	`unknown`	The value to tag.

Returns

string — the tag, such as "[object Array]".

Examples

Reading the tag

objectToString([]); // => "[object Array]"
objectToString(null); // => "[object Null]"
objectToString(new Date()); // => "[object Date]"

Source

src/lang/object/objectToString.ts

23 September 2026

This documentation was generated with AI (Claude) from the library's source code.

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