The article explains how to use Object.entries() to obtain key-value pairs from an object and how to manipulate them using array methods. It introduces the deepFreeze utility, which ensures complete immutability of an object, even for nested properties. The function works by recursively freezing all properties and prevents any changes to the inner objects. Lastly, it touches upon converting objects into maps using Object.entries() and the Map constructor, demonstrating the versatility of this method in handling object data.
Object.entries() returns an array of [key, value] pairs for all the owned properties of an object, enabling various array methods for manipulation.
To implement deepFreeze, Object.entries is used to recursively freeze all object properties, ensuring complete immutability beyond shallow limits.
After employing deepFreeze, trying to modify any properties of nested objects results in an error, demonstrating that immutability is achieved.
Object.entries can be combined with the Map constructor to convert objects into Maps, utilizing their key-value pair structure effectively.
#javascript #objectentries #deep-freeze #objectfreeze #maps #object-methods #data-structures #functional-programming #deep-freezing #object-manipulation #map-constructor #deepfreeze #immutability
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