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Which function is a synonym for on()?

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Which function is a synonym for on()? (a) addListener() (b) listeners() (c) once() (d) add() I got this question in class test. I'm obligated to ask this question of Server-Side JavaScript topic in chapter Server-Side and Client-Side Scripting of JavaScript Select the correct answer from above options JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

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The correct choice is (a) addListener() To elaborate: The on() method is used for registering handlers. addListener() is a synonym for on().

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