<\/span><\/h2>\n\n\n\nJavaScript provides a delete command that allows you to directly access and remove JavaScript property. There are a couple of ways to use it.<\/p>\n\n\n\n
delete object.property
OR
delete object['property']<\/pre>\n\n\n\nHere is the command to remove property ‘b’ from our data object.<\/p>\n\n\n\n
delete data['b']
console.log(data); \/\/ output is { a: 1, c: 3 }<\/pre>\n\n\n\nPlease note, delete command always returns control unless there is an error. It returns true, whether the property exists or not. <\/p>\n\n\n\n
It returns false only if the property cannot be removed, such as the built in properties of data types. For example, it will return false, if you call it on the length property of an array. On similar lines, if a property is defined in the object prototype, then it cannot be removed and can be still accessed.<\/p>\n\n\n\n
Also, delete command can remove only one property at a time. If you want to delete multiple properties, you need to call delete separately for each property.<\/p>\n\n\n\n