SvelteKit 원격 함수

<section class="stage"><div class="heading">REMOTE FUNCTION <span class="hint">call crosses boundary</span></div><div class="remote"><div class="tile client">CLIENT <small>query()</small></div><div class="link"><i></i></div><div class="tile server">SERVER <small>database</small></div></div><div class="result" id="remote-result">waiting for result</div><div class="caption">The server-only work stays across the boundary</div></section>

.stage{width:min(94vw,780px);height:min(88vh,322px);padding:clamp(12px,3vmin,20px);border:1px solid var(--line);border-radius:16px;background:var(--surface);box-shadow:0 12px 36px #0001;display:flex;flex-direction:column;gap:clamp(7px,2vmin,14px);font:500 clamp(12px,3.5vmin,17px)/1.3 var(--font-sans,system-ui,sans-serif);overflow:hidden}.heading{display:flex;justify-content:space-between;align-items:center;gap:8px;font-weight:750;color:var(--accent)}.hint{color:var(--muted);font-size:clamp(12px,3.2vmin,14px);font-weight:500}.caption{margin-top:auto;color:var(--muted);font-size:clamp(12px,3.2vmin,14px)}.row{display:flex;gap:clamp(5px,1.5vmin,12px);align-items:center}.tile{padding:clamp(6px,1.8vmin,13px);border:1px solid var(--line);border-radius:9px;background:var(--bg);text-align:center;min-width:0}.arrow{color:var(--accent);font-weight:800}.stage [data-on]{transition:background .3s,border-color .3s,opacity .3s,transform .3s}.stage .on{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 14%,var(--surface));color:var(--accent)}.remote{flex:1;display:flex;align-items:center;justify-content:center;gap:8px}.remote .tile{width:32%;max-width:150px;font-weight:750}.remote small{display:block;margin-top:7px;color:var(--muted);font:600 .75em ui-monospace,monospace}.link{width:23%;height:4px;background:var(--line);position:relative}.link i{position:absolute;left:0;top:-8px;width:20px;height:20px;border-radius:50%;background:var(--accent-2);transition:left .35s,background .3s}.stage[data-step="1"] .link i{left:calc(100% - 20px)}.stage[data-step="2"] .link i{left:0;background:var(--accent)}.stage[data-step="1"] .server,.stage[data-step="2"] .client{border-color:var(--accent)}.result{text-align:center;color:var(--accent-2);font-weight:750}.stage small,.stage button,.stage .cards b,.stage .phase b,.stage .pair b,.stage .tree-mini b{font-size:clamp(12px,3.2vmin,14px)!important}

const stage=document.querySelector(".stage"),result=document.getElementById("remote-result"),messages=["calling query()","server reads data","result: 3 rows"];let step=0;function tick(){stage.dataset.step=String(step);result.textContent=messages[step];step=(step+1)%3}tick();let timer=setInterval(tick,1000);stage.addEventListener("pointerdown",()=>{clearInterval(timer);tick()})