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@teknixstuff
Created June 15, 2022 14:38
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JS database
function Database(...cols) {
const arrayEquals = (a1,a2)=>a1.every(e=>a2.includes(e))&&a2.every(e=>a1.includes(e));
var databaseRaw = [];
var database = new Proxy(databaseRaw,{
set(obj, prop, val) {
if (!(Number.isInteger(Number(prop)) && Number(prop) > 0)) {
return Reflect.set(obj, prop, val);
}
if (typeof val !== 'object') {
throw new TypeError('Database entry must be an object.');
}
if (!arrayEquals(Object.keys(val),database.cols)) {
throw new TypeError('Database entry must have keys that match the database\'s columns.');
}
return Reflect.set(obj, prop, val);
}
});
Object.defineProperty(database,'raw',{
configurable: false,
enumerable: false,
writable: false,
value: databaseRaw
});
Object.defineProperty(database,'cols',{
configurable: false,
enumerable: false,
writable: false,
value: Object.freeze(cols)
});
return database;
}
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