`isNodeValue()`

Function in IR

Runtime type guard for "is this value a node".

import { isNodeValue } from 'typeshade'

The signature, the description and the examples come from the compiler's own source at commit 26de7be8.

Syntax

const isNodeValue: (v: unknown) => v is ReadonlyNode

Parameters

v unknown

Return value

v is ReadonlyNode

Description

Runtime type guard for “is this value a node”. It reads the NODE_BRAND slot instead of using instanceof Node, so it also recognizes a node built by a different loaded copy of this package, which instanceof would miss because a dual-loaded dependency splits prototype identity. Use it over instanceof anywhere a value may come from another copy.

Examples

Example

import { isNodeValue, f32 } from 'typeshade'

isNodeValue(f32(1))  // true
isNodeValue(42)      // false: a bare number is not a node

Source

src/core/ir/node.ts, line 167, at commit 26de7be8

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isNodeValue()