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What is the syntax of jQuery fadeIn() method?

40. What is the syntax of jQuery fadeIn() method?

1. $(selector).fadeIn();
2. $(selector).fadeIn(callback, speed);
3. $(selector).fadeIn(callback);
4. $(selector).fadeIn(speed,callback);

Answer: D) $(selector).fadeIn(speed,callback);

Explanation:

The syntax of jQuery method fadeIn() is:

$(selector).fadeIn(speed,callback);