Here are a few optimizations that could be made to the code:
- Use object destructuring to simplify the constructor of CustomDescriptor:
constructor({ value, ...descriptor } = {}) {
if (value) {
Object.assign(this, {
writable: true,
enumerable: true,
configurable: true,
value,
}, descriptor);
} else {
Object.assign(this, {
enumerable: true,
configurable: true,
}, descriptor);
}
}
- Simplify the check for CustomObject in AppDataModel’s constructor:
if (!(value instanceof CustomObject)) {
// Check for CustomDescriptor first
if (value instanceof CustomDescriptor) {
return new AppDataModel(custom({ descriptor: value }), { _rawValue: value });
}
// Check for type next
const type = Data.getExactType(value);
if (type === Function) {
return new AppDataModel(custom({ type: value }), { _rawValue: value });
}
// Other values go into default
return new AppDataModel(custom({ default: value }), { _rawValue: value });
}
- Use computed property names to simplify the assignment of properties in AppDataModel’s constructor:
// Instead of this:
for (const key of ['type', 'maxLength', 'descriptor']) {
if (key in value) {
this[key] = value[key];
}
}
// You can use computed property names like this:
for (const key of Object.keys(value)) {
if (['type', 'maxLength', 'descriptor'].includes(key)) {
this[key] = value[key];
}
}
- Use array methods like map and reduce instead of loops where possible:
// Instead of this:
let result = {};
for (const [key, val] of Object.entries(this.children) as any) {
if (val.descriptor) {
Object.defineProperty(result, key, val.descriptor);
} else {
result[key] = val.default;
}
}
// You can use reduce like this:
const result = Object.entries(this.children).reduce((acc, [key, val]) => {
if (val.descriptor) {
Object.defineProperty(acc, key, val.descriptor);
} else {
acc[key] = val.default;
}
return acc;
}, {});
- Use shorthand object methods to simplify the validator function in AppDataModel:
this.validator = (() => {
const { validator } = value;
if (!validator) {
return this.defaultValidator;
}
const type = Data.getExactType(validator);
// Use shorthand object methods here
const validators = {
Array: data => validator.includes(data),
RegExp: data => validator.test(data),
Function: validator,
};
return validators[type] || this.defaultValidator;
})();




