<pre class="shiki github-dark shaku"><code>/** * @param {Function} func * @param {number} delay * @param {number} period * @return {number} */function mySetInterval(func, delay, period) { const state = { id: null, stopped: false }; let count = 0; function handler() { if (state.stopped) return; count++; timeout = delay + (count * period) func(); state.id = setTimeout(handler, timeout) } state.id = setTimeout(handler, delay + (count * period)) return state}/** * @param { number } id */function myClearInterval(state) { state.stopped = true clearTimeout(state.id)}</code></pre>

simple without global variables