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<template>
<input :value="formattedDate" @input="onInput" type="date" />
</template>
<script>
const fromISO8601 = (string) => new Date(string);
const toISO8601 = (date) => date.toISOString();
const pad = (what, length = 2) => `00000000${what}`.substr(-length);
export default {
props: ['value'],
data: () => ({
date: new Date(),
}),
computed: {
formattedDate() {
return `${this.date.getFullYear()}-${pad(this.date.getMonth() + 1)}-${pad(this.date.getDate())}`;
},
},
methods: {
onInput({ target }) {
const newValue = toISO8601(target.valueAsDate);
if (newValue !== this.value) {
this.$emit('input', newValue);
}
},
},
beforeMount() {
if (this.value) {
this.date = fromISO8601(this.value);
}
},
};
</script>
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