How to Remove a Property from a JavaScript Object
Topic: JavaScript / jQueryPrev|Next
Answer: Use the delete Operator
You can use the delete operator to completely remove the properties from the JavaScript object. Deleting is the only way to actually remove a property from an object.
Setting the property to undefined or null only changes the value of the property. It does not remove property from the object. Let's take a look at the following example:
Example
Try this code »<script>
var person = {
name: "Harry",
age: 16,
gender: "Male"
};
// Deleting a property completely
delete person.age;
console.log(person.age); // Prints: undefined
console.log(person); // Prints: {name: "Harry", gender: "Male"}
// Setting the property value to undefined
person.gender = undefined;
console.log(person.gender); // Prints: undefined
console.log(person); // Prints: {name: "Harry", gender: undefined}
</script>Related FAQ
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