INNER CODE UNIT · JavaScript

printTable

linxidnju/OpenTag · src/cli.js:243

function printTable(rows) {
  if (!rows.length) {
    console.log("(none)");
    return;
  }
  const headers = Object.keys(rows[0]);
  const widths = headers.map((header) => Math.max(header.length, ...rows.map((row) => String(row[header] ?? "").length)));
  console.log(headers.map((header, i) => header.padEnd(widths[i])).join("  "));
  console.log(headers.map((_, i) => "-".repeat(widths[i])).join("  "));
  for (const row of rows) {
    console.log(headers.map((header, i) => String(row[header] ?? "").padEnd(widths[i])).join("  "));
  }
}

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