Timer Functions and Initialization

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SubsidizedPulsar
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10 Questions

What is the purpose of the store_answer function?

To send the answer to the server

What happens when the timer_button is clicked and the timer_id is 0?

The timer starts

What is the purpose of the timer_offset variable?

To adjust the timer start time

What happens when the timer_stop_time is not null and the timer_start_time is not null?

The timer duration is calculated

What is the purpose of the blink_right_answer function?

To highlight the correct answer

What is the purpose of the timer_loop function?

To update the timer display

What happens when the selected_answer is not null and the timer_id is 0?

The answer is sent to the server

What is the purpose of the clearInterval function?

To stop the timer

What is the purpose of the timer_id variable?

To keep track of the timer state

What is the purpose of the timer_start_time variable?

To store the timer start time

Study Notes

Timer Functions

  • The store_answer function 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.php URL with the timer duration, answer, and a random value.

Timer Initialization

  • The timer_click function 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_loop function 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 statisticWrap elements are updated with the corresponding answer options (a, b, c, d, e) and values.
  • The answer options are displayed in uppercase.
  • The blink_right_answer function 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_id is used to store the timer interval ID.
  • timer_start_time and timer_stop_time are used to store the start and stop times of the timer.
  • timer_offset is used to store the timer offset.
  • selected_answer is used to store the selected answer.

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.

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