@marteye/studio-cli/dist/node_modules/csv-stringify/lib/api/normalize_columns.js

CLI for MartEye Studio API

'use strict';

const normalize_columns = function (columns) {
  if (columns === undefined || columns === null) {
    return [undefined, undefined];
  }
  if (typeof columns !== "object") {
    return [Error('Invalid option "columns": expect an array or an object')];
  }
  if (!Array.isArray(columns)) {
    const newcolumns = [];
    for (const k in columns) {
      newcolumns.push({
        key: k,
        header: columns[k],
      });
    }
    columns = newcolumns;
  } else {
    const newcolumns = [];
    for (const column of columns) {
      if (typeof column === "string") {
        newcolumns.push({
          key: column,
          header: column,
        });
      } else if (
        typeof column === "object" &&
        column !== null &&
        !Array.isArray(column)
      ) {
        if (!column.key) {
          return [
            Error('Invalid column definition: property "key" is required'),
          ];
        }
        if (column.header === undefined) {
          column.header = column.key;
        }
        newcolumns.push(column);
      } else {
        return [
          Error("Invalid column definition: expect a string or an object"),
        ];
      }
    }
    columns = newcolumns;
  }
  return [undefined, columns];
};

exports.normalize_columns = normalize_columns;
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