@mindfiredigital/pivothead/dist/engine/connect/fileUtils.d.ts

PivotHead is a powerful and flexible library for creating interactive pivot tables in JavaScript applications. It provides a core engine for data manipulation and, in the future, will be compatible with wrappers for React, Vue, Svelte, and Angular, making

import type { FileConnectionResult, ConnectionOptions, DataRecord } from '../../types/interfaces';
declare const SUPPORTED_CSV_EXTENSIONS: string[];
declare const SUPPORTED_JSON_EXTENSIONS: string[];
export { SUPPORTED_CSV_EXTENSIONS, SUPPORTED_JSON_EXTENSIONS };
/**
 * Opens a file picker dialog
 */
export declare function openFilePicker(extensions: string[]): Promise<File | null>;
/**
 * Validates file before processing
 */
export declare function validateFile(file: File, options: ConnectionOptions): FileConnectionResult;
/**
 * Reads file as text with optional progress callback
 */
export declare function readFileAsText(file: File, onProgress?: (progress: number) => void): Promise<string>;
/**
 * Gets file extension from filename
 */
export declare function getFileExtension(filename: string): string;
/**
 * Formats file size for human reading
 */
export declare function formatFileSize(bytes: number): string;
/**
 * Validates data structure and returns warnings
 */
export declare function validateDataStructure(data: DataRecord[], columns: string[]): string[];
/**
 * Extracts array from nested JSON using dot notation path
 */
export declare function extractArrayFromPath(obj: unknown, path: string): DataRecord[];
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