All the questions I received were "trick" JavaScript questions, such as how to use the native apply function, the this keyword in tricky scenarios, and mutating prototype functions. These types of questions/scenarios are rarely encountered and can be easily looked up when the need arises.

The type of questions I would expect for this position would be related to the skills listed in the job posting. These should allow the candidate to demonstrate knowledge and understanding of items such as:

• Front-end design patterns
• React hooks
• CSS/SCSS
• Security and performance considerations
• Client APIs
• State management
• Testing patterns
• Best practices

As well as a host of other "soft" skills, such as team or developer mentoring, establishing processes, communication, and interpersonal skills.

If they are proud of themselves for these kinds of trick questions, it would be difficult for them to find an actual good senior engineer.

How to use "apply" in JS

"this" keyword in tricky scenarios

How to mutate prototype function