17 lines
572 B
TypeScript
17 lines
572 B
TypeScript
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function esc(v: unknown): string {
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if (v === null || v === undefined) return "";
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const s = String(v);
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if (s.includes('"') || s.includes(",") || s.includes("\n") || s.includes(";")) {
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return `"${s.replace(/"/g, '""')}"`;
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}
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return s;
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}
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export function toCsv(rows: Record<string, unknown>[], columns?: string[]): string {
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if (rows.length === 0) return "";
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const cols = columns ?? Object.keys(rows[0]);
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const head = cols.map(esc).join(",");
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const body = rows.map((r) => cols.map((c) => esc(r[c])).join(",")).join("\n");
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return `${head}\n${body}\n`;
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}
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