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<template>
<button @click="increment">
Count is: {{ state.count }}, double is: {{ state.double }}
</button>
</template>
<script>
import { reactive, computed } from 'vue'
export default {
setup() {
const state = reactive({
count: 0,
double: computed(() => state.count * 2)
})
function increment() {
state.count++
}
return {
state,
increment
}
}
}
</script>
function createCount() {
const { subscribe, set, update } = writable(0);
return {
subscribe,
increment: () => update(n => n + 1),
decrement: () => update(n => n - 1),
reset: () => set(0)
};
}
S
<template>
<button @click="increment">
Count is: {{ state.count }}, double is: {{ state.double }}
</button>
</template>
<script>
import { reactive, computed } from 'vue'
export default {
setup() {
const state = reactive({
count: 0,
double: computed(() => state.count * 2)
})
function increment() {
state.count++
}
return {
state,
increment
}
}
}
</script>
function createCount() {
const { subscribe, set, update } = writable(0);
return {
subscribe,
increment: () => update(n => n + 1),
decrement: () => update(n => n - 1),
reset: () => set(0)
};
}
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