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date | id | title |
---|---|---|
2020-11-13 | aed94d48-374c-4f3d-8dca-b6e4b3f9ae83 | JavaScript Delete Operator |
Description
The delete
operator deletes a binding (duh).
Syntax
let anObject = { left: 1, right: 2 };
console.log(anObject.left); // 1
delete anObject.left;
console.log(anObject.left); // undefined
console.log("left" in anObject); // false
console.log("right" in anObject); // true