How to use the tiny-types.Predicate.to function in tiny-types
To help you get started, weāve selected a few tiny-types examples, based on popular ways it is used in public projects.
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jan-molak / serenity-js / packages / core / src / model / Timestamp.ts View on Github 
function isInstanceOf(type: Function & (new (...args: any[]) => T)): Predicate { // tslint:disable-line:ban-types
return Predicate.to(`be an instance of ${ type.name }`, (value: T) =>
value instanceof type);
}function looksLikeBase64Encoded(): Predicate {
const regex = /^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{4}|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)$/;
return Predicate.to(`be an ISO-8601-compliant date`, (value: string) => regex.test(value));
}function isSerialisedISO8601Date(): Predicate {
return Predicate.to(`be an ISO-8601-compliant date`, (value: string) =>
moment(value, moment.ISO_8601, true).isValid());
}tiny-types
A tiny library that brings Tiny Types to JavaScript and TypeScript
