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Google Maps-API And Development MCQs

How would you call the function testFunction only the first time the map is loaded?

google.maps.event.addListenerOnce(map, 'load', testFunction);

google.maps.event.addListener(map, 'idle', testFunction);

google.maps.event.addListener(map, 'load', testFunction);

google.maps.event.addListenerOnce(map, 'idle', testFunction);

Answer

Correct Answer: google.maps.event.addListenerOnce(map, 'idle', testFunction);

Explanation:

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