@tsed/cli-core/lib/esm/utils/parseOption.js

Build your CLI with TypeScript and Decorators

import { Type } from "@tsed/core";
export function parseOption(value, options) {
    const { type, itemType, customParser } = options;
    if (type) {
        switch (type) {
            case String:
                value = String(value);
                break;
            case Boolean: // the flag is added
                return true;
            case Number:
                value = +value;
                break;
            case Array:
                value = value.split(",").map((value) => parseOption(value, { type: itemType, customParser }));
                break;
        }
    }
    if (options.customParser) {
        value = options.customParser(value);
    }
    return value;
}