Let’s say we have an object with this format:
var thisIsObject= {
'Cow' : 'Moo',
'Cat' : 'Meow',
'Dog' : 'Bark'
};
I wanted to do a function that removes by key:
removeFromObjectByKey('Cow');
The delete
operator allows you to remove a property from an object.
The following examples all do the same thing.
// Example 1
var key = "Cow";
delete thisIsObject[key];
// Example 2
delete thisIsObject["Cow"];
// Example 3
delete thisIsObject.Cow;
If you’re interested, read Understanding Delete for an in-depth explanation.