class Buildermethod

transform()

Transforms the value using the provided callback function.

transform<R>(fn: (value: T) => R): Builder<R>;

Notes

• Applied after all checks and transformations added so far.
• Additional checks and transformations can be chained after this call.

Parameters

• fn — The transformation function.

Return value

This builder, for chaining; typed using the return type of the transformation function.

Examples

f.string().transform(s => s.trim()).check(s => s.length > 0);
f.number().transform(n => n * 100).positive();

Related

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