# ❤ Benefits

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<summary>Single value check</summary>

Check single value against one type.

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<summary>Multiple value check</summary>

Check **every** of multiple values against one type.

Check **some** of the multiple values against one type.

Check **one by one** of the multiple values against one type.

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<summary>Guard the value type</summary>

Predefined functions to guard the most commonly used types.

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<summary>Objects consisting of check and guard functions</summary>

Predefined objects that contain name-specific functionalities.

Object `type` that consists of all the guard and check functions.

Object `are`, `is` and `isNot` to check the values.

Object `guard` to guard the values.

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<summary>Callback</summary>

Each function has a `callback` parameter to handle the check result before it's returned.

The callback function includes a `payload` parameter consisting of properties specific to the core function, and it is extendable by custom properties.

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<summary>Payload</summary>

Each function has an optional `payload` parameter to assign custom properties to the `payload` of the given callback function.

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