The Object.seal() method seals an object, preventing new properties from being added, but allowing modification of existing properties. The object is still mutable.
Example:
const person = { name: 'John' };
Object.seal(person);
person.name = 'Jane';
console.log(person.name); // 'Jane'
person.age = 30; // This won't workTags: basic, JavaScript, objects
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