A file-like object of immutable, raw data. Blobs represent data that isn't necessarily in a JavaScript-native format. The File interface is based on Blob, inheriting blob functionality and expanding it to support files on the user's system.

MDN Reference

interface Blob {
    size: number;
    type: string;
    arrayBuffer(): Promise<ArrayBuffer>;
    bytes(): Promise<Uint8Array>;
    slice(start?: number, end?: number, contentType?: string): Blob;
    stream(): ReadableStream<Uint8Array>;
    text(): Promise<string>;
}

Hierarchy

  • _Blob
    • Blob

Properties

size: number
type: string

Methods

  • Returns Promise<ArrayBuffer>

  • Returns Promise<Uint8Array>

  • Parameters

    • Optionalstart: number
    • Optionalend: number
    • OptionalcontentType: string

    Returns Blob

  • Returns ReadableStream<Uint8Array>

  • Returns Promise<string>

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