mirror of
https://github.com/lynchmarkHQ/lynchmark.com.git
synced 2026-10-08 21:35:23 +00:00
18 lines
645 B
JavaScript
18 lines
645 B
JavaScript
const processCSV = async (csv, { filterColumn: fc, filterValue: fv, groupBy: gb, aggregateColumn: ac, operation: op }) => {
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const { default: Papa } = await import('https://esm.run/papaparse')
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const { data } = Papa.parse(csv, { header: true })
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const grouped = data.filter(r => r[fc] == fv).reduce((a, r) => {
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const k = r[gb], v = +r[ac] || 0
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a[k] = a[k] || { s: 0, c: 0 }
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a[k].s += v
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a[k].c++
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return a
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}, {})
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return Object.entries(grouped).map(([k, { s, c }]) => ({
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[gb]: k,
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result: op === 'count' ? c : op === 'sum' ? s : s / c
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}))
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}
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export default processCSV;
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// Generation time: 257.221s
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// Result: PASS
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