An object is written in a key/value pair. The key/value pair is called a property. For example,
const student = {
name: 'John',
age: 22
}
Here, name: 'John'
and age: 22
are the two properties of a student object.
Example: Remove a Property From an Object
// program to remove a property from an object
// creating an object
const student = {
name: 'John',
age: 20,
hobbies: ['reading', 'games', 'coding'],
greet: function() {
console.log('Hello everyone.');
},
score: {
maths: 90,
science: 80
}
};
// deleting a property from an object
delete student.greet;
delete student['score'];
console.log(student);
Output
{ age: 20, hobbies: ["reading", "games", "coding"], name: "John" }
In the above program, the delete
operator is used to remove a property from an object.
You can use the delete operator with .
or [ ]
to remove the property from an object.
Note: You should not use the delete operator on predefined JavaScript object properties.
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