mongez-supportive-is-overview

To check variable types and shapes in JavaScript without runtime dependencies, use a dependency-free set of pure predicates. These predicates provide tree-shakable named exports for data validation and type guards.

Yes, you can use JavaScript type predicates for feature detection in both frontend and Node environments. The predicates rely on lazy environment probing to avoid server-side hazards while checking shapes like isUrl or isPlainObject.

The best way to import tree-shakable JavaScript type guards is through named exports. This pattern ensures that only the predicates you explicitly import, such as isString or isEmpty, are bundled into your final application.

To install and start using JavaScript type predicate functions, add the package to your project and import the required functions. This enables quick data validation through pure predicates like isString and isEmpty.

No, you do not need external libraries to perform smart emptiness checks on plain objects in JavaScript. The dependency-free predicates include smart emptiness semantics and isPlainObject checks built directly into the package.