/**
* The Fact class stores the path and the value of a Fact instance.
*/
class Fact {
/**
*
* @param {string} path The mandatory path of the fact.
* @param {any} value The optional value of the fact. If letft undefined, the fact will be
* retracted if it exists.
*/
constructor(path, value) {
if (typeof path !== "string") {
throw new Error("The 'path' parameter must be a string.");
}
this._path = path;
this._value = value;
}
/**
* Gets the fact path.
*/
get path() {
return this._path;
}
/**
* Gets the fact value.
*/
get value() {
return this._value;
}
};
module.exports = Fact;