NativeScript 9.1 Released → V8 14.9, Vite 8 HMR, built for rapid agentic visual iteration
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ts
function isNullOrUndefined(value: any): boolean;

Defined in: utils/types.d.ts:55

A function that checks if something is not defined (null or undefined).

Parameters ​

ParameterTypeDescription
valueanyThe value which will be checked. Returns true if value is null or undefined.

Returns ​

boolean

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