What is JavaScript Object?

Each object consists of an unordered list <ol> of primitive data types (and sometimes reference data types) stored as pairs of names and values. In a list, each item is a property.

There are several methods that can be used to test a string as a literal and as an object.

We will explore all the above methods along with their basic implementation with the help of examples.

How to test a string as a literal and as an object in JavaScript ?

In this article, we learn how to test a string as a literal and as an object using JavaScript. 

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What is JavaScript Literal?

Literals are ways of representing fixed values in source code. In most programming languages, values are notated by integers, floating-point numbers, strings, and usually by booleans and characters, enumerated types and compound values, such as arrays, records, and objects, are notated by other names as well....

What is JavaScript Object?

Each object consists of an unordered list

    of primitive data types (and sometimes reference data types) stored as pairs of names and values. In a list, each item is a property....

Approach 1: Using typeof operator

The typeof operator in JavaScript returns a string that identifies the data type of an expression. It is used to determine the data type (returns a string) of its operands. Operands can either be literals or data structures, such as variables, functions, or objects. An operator returns the type of data. The result of typeof can be an object, a boolean, a function, a number, a string, or an undefined value....

Approach 2: Using instanceof operator

...

Approach 3: Using constructor property

instanceof operator: It checks whether the LHS (left-hand side) object is an object of the RHS (right-hand side) class or not. If the object is of that particular class, then it returns true otherwise false....