var con = document.getElementById('con');con.onclick = function () { Promise.resolve().then(function Promise1() { con.textContent = 0; // requestAnimationFrame(() => con.textContent = 0) });};<div id="con">this is con</div>為什么這段代碼在執(zhí)行微任務(wù)后不觸發(fā)渲染？setTimeout(function setTimeout1() { console.log('setTimeout1')}, 0)var channel = new MessageChannel();channel.port1.onmessage = function onmessage1() { console.log('postMessage'); Promise.resolve().then(function promise1() { console.log('promise1'); })};channel.port2.postMessage(0);setTimeout(function setTimeout2() { console.log('setTimeout2')}, 0);console.log('sync');為什么 postmessage 在 timer 之前執(zhí)行？
事件執(zhí)行順序和渲染
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2022-10-08 15:39:42
