mirror of
https://github.com/lynchmarkHQ/lynchmark.com.git
synced 2026-10-08 21:35:23 +00:00
16 lines
856 B
JavaScript
16 lines
856 B
JavaScript
const store={},load=u=>store[u]??=import(u),csvLib='https://cdn.jsdelivr.net/npm/papaparse@5.4.1/+esm',dataLib='https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/+esm',toNum=v=>{const n=Number(v);return Number.isFinite(n)?n:0};
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async function processCSV(csv,opt){
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const [{Papa},{groupBy:gb}] = await Promise.all([load(csvLib),load(dataLib)]);
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const {filterColumn:f,filterValue:v,groupBy:g,aggregateColumn:a,operation:o}=opt;
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const rows=Papa.parse(csv,{header:true,skipEmptyLines:true}).data.filter(r=>r&&r[f]==v);
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const grouped=gb(rows,r=>r[g]);
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return Object.entries(grouped).map(([k,items])=>{
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const total=items.reduce((s,r)=>s+toNum(r[a]),0);
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const result=o==='count'?items.length:o==='sum'?total:items.length?total/items.length:0;
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return {[g]:k,result};
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});
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}
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export default processCSV;
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// Generation time: 29.916s
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// Result: FAIL
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