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HowDoYouConvert/hdyc-svelte/src/lib/components/ScientificNotationValue.svelte
2026-03-08 10:46:36 +00:00

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<script lang="ts">
import { parseScientificNotation, type ScientificNotationParts } from '$lib/utils/formatScientific';
export let value: string | number | null | undefined = null;
export let fallback = '—';
export let className = '';
const formattedValue = value == null ? '' : `${value}`;
const scientific: ScientificNotationParts | null = formattedValue
? parseScientificNotation(formattedValue)
: null;
</script>
{#if scientific}
<span class={`scientific-notation ${className}`.trim()}>
<span class="scientific-base">{scientific.base}</span>
<span class="scientific-suffix">
×10<sup>{scientific.exponent}</sup>
</span>
</span>
{:else}
<span class={`scientific-plain ${className}`.trim()}>
{formattedValue || fallback}
</span>
{/if}
<style>
.scientific-notation,
.scientific-plain {
display: inline-flex;
align-items: baseline;
gap: 0.15rem;
}
.scientific-suffix {
display: inline-flex;
align-items: baseline;
gap: 0.15rem;
font-size: 0.85em;
}
.scientific-suffix sup {
font-size: 0.75em;
vertical-align: super;
}
</style>