Variable IsConst

Example

import { Is } from './Is';

// Basic usage
Is.defined(value);        // Check if value is defined
Is.null(value);           // Check if value is null
Is.function(value);       // Check if value is a function

// Negated checks
Is.not.defined(value);    // Check if value is undefined
Is.not.null(value);       // Check if value is not null

// Array validation
Is.all.defined([1, 2, 3]); // Check if all values are defined
Is.any.null([1, null, 3]); // Check if any value is null
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