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<template>
<span v-if="isNum" ref="output">{{ outputFixed }}</span> <span v-if="isNum">{{ unit }}</span>
<span v-else>{{ value }}</span>
</template>
<script lang="ts">
import { sleep } from "../util.ts";
export default {
props: {
/** Value to count */
value: {
type: [ String, Number ],
default: 0,
},
time: {
type: Number,
default: 0.3,
},
/** Unit of the value */
unit: {
type: String,
default: "ms",
},
},
data() {
return {
output: "",
frameDuration: 30,
};
},
computed: {
isNum() {
return typeof this.value === "number";
},
outputFixed() {
if (typeof this.output === "number") {
if (this.output < 1) {
return "<1";
} else if (Number.isInteger(this.output)) {
return this.output;
} else {
return this.output.toFixed(2);
}
} else {
return this.output;
}
}
},
watch: {
async value(from, to) {
let diff = to - from;
let frames = 12;
let step = Math.floor(diff / frames);
if (! (isNaN(step) || ! this.isNum || (diff > 0 && step < 1) || (diff < 0 && step > 1) || diff === 0)) {
for (let i = 1; i < frames; i++) {
this.output += step;
await sleep(15);
}
}
this.output = this.value;
},
},
mounted() {
this.output = this.value;
},
methods: {},
};
</script>
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