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Which of the following is one of the fundamental features of JavaScript?

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Which of the following is one of the fundamental features of JavaScript?

(a) Single-threaded

(b) Multi-threaded

(c) Both Single-threaded and Multi-threaded

(d) Simple-threaded

I got this question during a job interview.

Query is from Web Workers topic in chapter Caching, Debugging and Animation of JavaScript

1 Answer

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Best answer
The correct choice is (a) Single-threaded

The best explanation: In computer programming, single-threading is the processing of one command at a time. One of the fundamental features of client-side JavaScript is that it is single-threaded: a browser will never run two event handlers at the same time, and it will never trigger a timer while an event handler is running.

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