datapilot-cli
Version:
Enterprise-grade streaming multi-format data analysis with comprehensive statistical insights and intelligent relationship detection - supports CSV, JSON, Excel, TSV, Parquet - memory-efficient, cross-platform
26 lines (25 loc) • 971 B
TypeScript
import { FormatterOptions } from '../FormatterOptions';
import { Row, RowArray, RowTransformFunction } from '../types';
declare type RowFormatterCallback = (error: Error | null, data?: RowArray) => void;
export declare class RowFormatter<I extends Row, O extends Row> {
private static isRowHashArray;
private static isRowArray;
private static gatherHeaders;
private static createTransform;
private readonly formatterOptions;
private readonly fieldFormatter;
private readonly shouldWriteHeaders;
private _rowTransform?;
private headers;
private hasWrittenHeaders;
private rowCount;
constructor(formatterOptions: FormatterOptions<I, O>);
set rowTransform(transformFunction: RowTransformFunction<I, O>);
format(row: I, cb: RowFormatterCallback): void;
finish(cb: RowFormatterCallback): void;
private checkHeaders;
private gatherColumns;
private callTransformer;
private formatColumns;
}
export {};