Problem
The Neo.core.Config class currently assigns default values for clone, cloneOnGet, isEqual, and mergeStrategy directly on each instance within its constructor or through class field initializers.
In a large-scale application, there can be tens of thousands of Config instances. Assigning these properties to every instance, even when they hold default values, leads to significant and unnecessary memory consumption. Each instance stores its own copy of the property keys and pointers to the values, creating considerable overhead.
Solution
To optimize memory usage and instantiation performance, we will refactor the Config class to leverage JavaScript's prototype chain.
Define Defaults on Prototype: The default values for clone, cloneOnGet, isEqual, and mergeStrategy will be defined once on Neo.core.Config.prototype.
Conditional Instance Assignment: The initDescriptor method will be modified to only set a property on the instance (this) if a config descriptor provides a value that is different from the prototype's default.
Benefits
- Reduced Memory Footprint: Instances will no longer store properties for default values. The memory overhead will be near-zero for the vast majority of configs that use the defaults.
- Faster Instantiation: The
Config constructor will perform less work, leading to faster object creation, which is beneficial when creating many components dynamically.
This is a standard JavaScript optimization that is critical for the performance of a core framework component like Config.
Problem
The
Neo.core.Configclass currently assigns default values forclone,cloneOnGet,isEqual, andmergeStrategydirectly on each instance within its constructor or through class field initializers.In a large-scale application, there can be tens of thousands of
Configinstances. Assigning these properties to every instance, even when they hold default values, leads to significant and unnecessary memory consumption. Each instance stores its own copy of the property keys and pointers to the values, creating considerable overhead.Solution
To optimize memory usage and instantiation performance, we will refactor the
Configclass to leverage JavaScript's prototype chain.Define Defaults on Prototype: The default values for
clone,cloneOnGet,isEqual, andmergeStrategywill be defined once onNeo.core.Config.prototype.Conditional Instance Assignment: The
initDescriptormethod will be modified to only set a property on the instance (this) if a config descriptor provides a value that is different from the prototype's default.Benefits
Configconstructor will perform less work, leading to faster object creation, which is beneficial when creating many components dynamically.This is a standard JavaScript optimization that is critical for the performance of a core framework component like
Config.