Have you used JavaScript in Postman for writing scripts or tests?

Yes, in Postman, you can use JavaScript to write scripts and tests. This allows automating the verification of API responses, such as checking the response status, body content, headers, etc.

Example of a simple test in Postman using JavaScript:

pm.test("Response status is 200", function () {
    pm.response.to.have.status(200);
});

pm.test("Response contains the required field", function () {
    var jsonData = pm.response.json();
    pm.expect(jsonData).to.have.property('userId');
});

Thus, JavaScript in Postman helps create flexible and powerful API checks directly within the tool's interface.