JavaScript二进制家族的相关内容

文章 2023-01-20 来自：开发者社区

JS的二进制家族：Blob、ArrayBuffer和Buffer

Blob、ArrayBuffer和Buffer 都是前端的二进制流数据Blob: 前端的一个专门用于支持文件操作的二进制对象ArrayBuffer：前端的一个通用的二进制缓冲区，类似数组，但在API和特性上却有诸多不同Buffer：Node.js提供的一个二进制缓冲区，常用来处理I/O操作他们三者的关系如下图所示BlobBlob ****对象表示一个不可变、原始数据的类文件对象。它的数据可以按....

文章 2023-01-20 来自：开发者社区

JS的二进制家族：Blob的具体介绍

什么是BlobBlob是一种JavaScript对象类型。Blob对象存储着大量的二进制数据，我们所熟悉的file对象就是继承自Blob，并且size和type属性也是继承自Blob。如何创建一个Blob对象创建一个Blob对象需要传递两个参数，一个是数据序列，可以是任意格式的值，一个是包含两个属性的对象，{ type: MIME的类型, endings: 决定第一个参数的数据格式，可以取值为 ....

文章 2023-01-20 来自：开发者社区

JS的二进制家族：ArrayBuffer的具体介绍

一、基础知识1.1 ArrayBufferArrayBuffer 对象用来表示通用的、固定长度的原始二进制数据缓冲区。ArrayBuffer 不能直接操作，而是要通过类型数组对象或 DataView 对象来操作，它们会将缓冲区中的数据表示为特定的格式，并通过这些格式来读写缓冲区的内容。ArrayBuffer 简单说是一片内存，但是你不能直接用它。这就好比你在 C 里面，malloc 一片内存出....

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更新时间 2024-07-31 09:16:19

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