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/** | |
* Sets a constant default value for the property when it is undefined. | |
* @template T | |
* @template {keyof T} Property | |
* @param {T} object An object. | |
* @param {Property} property A property of the provided object. | |
* @param {T[Property]} [defaultValue] The default value to set for the property. | |
* @returns {T[Property]} The defaulted property value. | |
*/ | |
const d = (object, property, defaultValue) => { | |
if (typeof object[property] === 'undefined' && typeof defaultValue !== 'undefined') { | |
object[property] = defaultValue; | |
} | |
return object[property]; | |
}; | |
/** | |
* Resolves the value for a nested object option. | |
* @template T | |
* @template {keyof T} Property | |
* @template Result | |
* @param {T} object An object. | |
* @param {Property} property A property of the provided object. | |
* @param {function(T | undefined): Result} fn The handler to resolve the property's value. | |
* @returns {Result} The resolved option value. | |
*/ | |
const n = (object, property, fn) => { | |
object[property] = fn(object[property]); | |
return object[property]; | |
}; | |
module.exports = { d, n }; | |