class Buildermethod

preprocess()

Replaces the input value using the provided callback function.

preprocess(fn: (value: unknown) => unknown): this;

Notes

• Runs before any other checks and transformations, but after optional/default checks.
• Used internally by the coerce set of functions.

Parameters

• fn — The callback function for preprocessing the input value.

Return value

This builder, for chaining.

Related

• class Builder static
  A class that represents a validation builder for an input value.