@wbce-d9/schema/dist/utils/extract-max-length.js

Utility for extracting information about existing DB schema

/**
 * Extracts the length value out of a given datatype
 * For example: `varchar(32)` => 32
 */
export default function extractMaxLength(type) {
    const regex = /\(([^)]+)\)/;
    const matches = regex.exec(type);
    if (matches && matches.length > 0 && matches[1]) {
        return Number(matches[1]);
    }
    return null;
}