- Tags: JS Window
- Categories: JavaScript Methods, JavaScript Reference, Reference
Quick Reference
The Window clearTimeout() method clears a timer set with the setTimeout() method.
<!-- html element to place output -->
<p id="my_output"></p>
The following sets a timer that will place a greeting on the page after 3 seconds (3000ms). There would be a button on the page, and if clicked by the user, would call a function to stop the timer from showing the message (if clicked within the 3 seconds).
// timer
let my_timeout = setTimeout(my_greeting, 3000);
// place time on the page
function my_greeting() {
document.getElementById('my_output').innerHTML = 'Hello World';
}
// function to clear timer
function my_stop_timeout() {
clearTimeout(my_timeout);
}
Output
(no page output, but the timer is cleared and the message will not show)
Syntax
clearTimeout(settimeoutid)
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JAVASCRIPT NOTES:
- When using JavaScript, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
- JavaScript is a case-sensitive language; firstName is NOT the same as firstname
- Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
- JavaScript variables must begin with a letter, $, or _
- JavaScript variables are case sensitive (x is not the same as X)
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