env-smart/lib/type.js

Zero-dependency library for loading .env files. Supports default values and type definitions.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.type = void 0;
/**
 * Cast a value into the specified type
 * @param   {string}                             value     A string representation of a variable
 * @param   {string}                             type      The type the value should be. Either string, boolean, number, object or array.
 * @param   {object}                             [options] Additional options. Optional.
 * @returns {string|boolean|number|object|Array} The value casted into the specified type.
 */
function type(value, type, options) {
    type = type.toLowerCase();
    if (typeof value === type) {
        return value;
    }
    if (type === 'string') {
        return String(value);
    }
    if (type === 'boolean') {
        return value.toLowerCase() === 'true';
    }
    if (type === 'number') {
        return Number(value);
    }
    // If the type is either an object or an array, assume it was serialized as JSON.
    if (['object', 'array'].includes(type)) {
        try {
            return JSON.parse(value);
        }
        catch (e) {
            if (options && options.verbose === true) {
                console.warn(`env-smart`, `Could not parse JSON value: ${e instanceof Error ? e.message : e}. Raw value:\n ${value}`);
            }
            if (type === 'object') {
                return {};
            }
            else if (type === 'array') {
                return [];
            }
        }
    }
    return value;
}
exports.type = type;