Variables can be emptied by setting their value to null. This open-ended question has the potential to spawn a good conversation. From my perspective, I want developers who will use whatever is available to meet a project's demands. The answer to the second question gives you an idea of the candidate's feelings about open source well, that is the way I see it. What are your thoughts on using frameworks? } You can give bonus points to any candidate who discusses the onerror event handler tied to the Window object in the browser — this allows it to monitor all errors on a page. Timers allow you to execute code at a set time or repeatedly using an interval. The setTimeout function, delay function initiates a timer that calls a specific function after the delay; it returns an id value that can be used to access it later.
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