<pre class="shiki github-dark shaku"><code>let timeoutIds = [];const oldSetTimeout = window.setTimeout;window.setTimeout = (func, timeout) =&gt; { const id = oldSetTimeout(func, timeout); timeoutIds.push(id); return id;};/** * cancel all timer from window.setTimeout */function clearAllTimeout() { for (const id of timeoutIds) { window.clearTimeout(id); } timeoutIds.length = 0;}function func1() { console.log('func1');}function func2() { console.log('func2');}function func3() { console.log('func3');}setTimeout(func1, 1000);setTimeout(func2, 1000);setTimeout(func3, 1000);clearAllTimeout();</code></pre>