@silexlabs/silex
Version:
Free and easy website builder for everyone.
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text/typescript
/*
* Silex website builder, free/libre no-code tool for makers.
* Copyright (c) 2023 lexoyo and Silex Labs foundation
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/**
* Throw an error if a parameter is missing
* @param value the value to check
* @param name the name of the parameter
* @throws Error if the parameter is missing
*/
export function requiredParam<T>(value: T | undefined, name: string, defaultValue?: T): NonNullable<T> {
if (value === undefined) {
if (defaultValue !== undefined) {
return defaultValue as NonNullable<T>
}
const error = new Error(`Missing required parameter ${name}`)
console.error(`Missing required parameter ${name}`, error)
throw error
}
return value as NonNullable<T>
}