What methods can be used to accurately display the data type with TypeOf()?

When working with the following code:

const data = Observable.from([{name: 'Alice', age: 25}, {name: 'Bob', age: 35}]);
console.log(typeof(data));

The type is displayed as Object().

Is there a way to obtain more specific information? I am curious if it can be identified as an Observable().

Thank you and best regards.

Answer №1

In JavaScript, the typeof of all class instances will be "object."

To determine if a variable named source is an instance of a class called Observable, you can use the instanceof operator:

console.log(source instanceof Observable);

Answer №2

Here are some ways to achieve this:

source.constructor

source.constructor.prototype

source.constructor.toString().indexOf // for logical check 

instanceof //operator.

The method you choose will depend on your specific requirements.

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