A timing examination system is triggered if the click event is triggered within 5 seconds, and if it is not triggered, the system marks the correct answer at the end of the countdown. How to implement
A timing examination system is triggered if the click event is triggered within 5 seconds, and if it is not triggered, the system marks the correct answer at the end of the countdown. How to implement
setTimeout , setTimeout has a return value, first receive it with a variable, and then empty the variable according to the situation to mark whether 5 seconds have elapsed:
var timeout;
timeout = setTimeout(function() {
console.log('Timeout exceeded');
showAnswer();
timeout = null;
}, 5000);
$('-sharpsomeID').click(function() {
console.log('User clicked!');
if(timeout) {
// 5
clearTimeout(timeout); //
// Do something here
} else {
// 5
// Do something here
}
});...
...
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