Prevent an object's properties value from updating

const obj = {name: 'Codedrops'};
console.log(obj.name); // Codedrops

/* Set the 'writable' descriptor to false for the 'name' key  */
Object.defineProperty(obj, 'name', {
        writable: false
});

obj.name = 'ABC';
console.log(obj.name); // Codedrops

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Comments

[lowlighter 🦑]

One may look also at Object.seal and Object.freeze, to respectively prevent an object from being extended with new properties or to be modified in any way

[Mehul Lakhanpal]

Yes, but there is a small difference between all of them. Have a post coming up..