const firstResult = ref(0); const result = ref(10); let runs = 0; const c1 = computed(() => { let x = firstResult.value; const shouldTakeResult = runs > 0; // or Math.round(Math.random()) if (shouldTakeResult) { x = result.value; } runs++; return x; }); console.warn('c1', c1.value); result.value = 100; await nextTick(); console.warn('c1', c1.value); // computation is not triggered result.value = 1000; await nextTick(); console.warn('c1', c1.value); // nope, still 0