Function isObject

Checks if the given value is an object. An object is a value that is not a primitive type (string, number, boolean, symbol, null, or undefined).

This function tests whether the provided value is an object or not. It returns true if the value is an object, and false otherwise.

This function can also serve as a type predicate in TypeScript, narrowing the type of the argument to an object value.

const value1 = {};
const value2 = [1, 2, 3];
const value3 = () => {};
const value4 = null;

console.log(isObject(value1)); // true
console.log(isObject(value2)); // true
console.log(isObject(value3)); // true
console.log(isObject(value4)); // false
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