Podcast
Questions and Answers
What is the purpose of the store_answer function?
What is the purpose of the store_answer function?
What happens when the timer_button is clicked and the timer_id is 0?
What happens when the timer_button is clicked and the timer_id is 0?
What is the purpose of the timer_offset variable?
What is the purpose of the timer_offset variable?
What happens when the timer_stop_time is not null and the timer_start_time is not null?
What happens when the timer_stop_time is not null and the timer_start_time is not null?
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What is the purpose of the blink_right_answer function?
What is the purpose of the blink_right_answer function?
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What is the purpose of the timer_loop function?
What is the purpose of the timer_loop function?
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What happens when the selected_answer is not null and the timer_id is 0?
What happens when the selected_answer is not null and the timer_id is 0?
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What is the purpose of the clearInterval function?
What is the purpose of the clearInterval function?
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What is the purpose of the timer_id variable?
What is the purpose of the timer_id variable?
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What is the purpose of the timer_start_time variable?
What is the purpose of the timer_start_time variable?
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Study Notes
Timer Functions
- The
store_answerfunction is triggered when an answer is submitted, and it calculates the timer duration by subtracting the start time from the stop time. - The function sends an AJAX request to the
/forum/timer.phpURL with the timer duration, answer, and a random value.
Timer Initialization
- The
timer_clickfunction is triggered when the timer button is clicked. - If the timer is not running, it sets the timer start time, updates the timer button and message, and starts the timer loop.
- The timer loop is set to run every 200 milliseconds.
Timer Loop
- The
timer_loopfunction updates the timer display with the elapsed time. - The elapsed time is calculated by subtracting the start time from the current time.
- The timer display is updated in the format "mm:ss".
Timer Stop and Pause
- When the timer button is clicked again, the timer stops, and the stop time is recorded.
- The timer offset is calculated by subtracting the start time from the stop time.
Statistic Wrap
- The
statisticWrapelements are updated with the corresponding answer options (a, b, c, d, e) and values. - The answer options are displayed in uppercase.
Blink Right Answer
- The
blink_right_answerfunction toggles the visibility of the element with the ID "timer_answer_official answer and stats are available only to registered users. register.".
Timer Variables
-
timer_idis used to store the timer interval ID. -
timer_start_timeandtimer_stop_timeare used to store the start and stop times of the timer. -
timer_offsetis used to store the timer offset. -
selected_answeris used to store the selected answer.
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Description
This quiz is about understanding the functions and initialization of a timer, including how it calculates duration and sends AJAX requests. It covers the store_answer and timer_click functions and their roles in timer functionality.
