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x/deno/cli/tsc/dts/lib.es5.d.ts>isNaN

A modern runtime for JavaScript and TypeScript.
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function isNaN
import { isNaN } from "https://deno.land/x/deno@v1.40.5/cli/tsc/dts/lib.es5.d.ts";

Returns a Boolean value that indicates whether a value is the reserved value NaN (not a number).

Parameters

number: number

A numeric value.

Returns

boolean