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https://github.com/lynchmarkHQ/lynchmark.com.git
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20 lines
678 B
JavaScript
20 lines
678 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://cdn.jsdelivr.net/npm/papaparse@5.4.1/+esm')
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const { data } = Papa.parse(csv, { header: true, skipEmptyLines: true })
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const groups = data.reduce((acc, row) => {
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if (row[fc] == fv) {
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const k = row[gb], v = +row[ac] || 0
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acc[k] = acc[k] || { s: 0, c: 0 }
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acc[k].s += v
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acc[k].c++
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}
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return acc
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}, {})
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return Object.entries(groups).map(([k, { s, c }]) => ({
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[gb]: k,
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result: op === 'count' ? c : op === 'avg' ? s / c : s
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}))
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}
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export default processCSV; |