如何在客户端javascript中使用node.js缓冲库 [英] How can I use node.js buffer library in client side javascript

问题描述

我想在我的网站中使用缓冲库(以处理二进制数据).这是我的用例:

I would like to use buffer library (in order handle binary data) in my website. here is my use case:

const privateKey = Buffer.from('<User's private key here>', 'hex');

buffer在node.js中可以正常工作，而无需任何其他npm模块或脚本.但不知何故，它无法在网络浏览器中工作.它显示了一个错误

buffer works fine in node.js without any additional npm module or script. but somehow,it is not working in web browser.it is showing an error

未捕获的引用错误:未定义缓冲区

uncaught refernce error: buffer is not defined

尽管我需要在HTML文件中添加库脚本文件.请帮我解决这个问题?

I though we need to add library script file in our html file. please help me to fix this?

推荐答案

缓冲对象在Node.js外部(即在浏览器中)不可用.这是因为(如果您不知道)Node.js是javascript运行时，因此Node.js特定功能在浏览器环境中不存在，因为它们与V8引擎关联，但与浏览器中的V8引擎无关.(请注意此处的区别).

The buffer object is not available outside of Node.js, i.e in the browser. This is because (in case you were not aware) Node.js is a javascript runtime, therefore Node.js specific functionalities do not exist within a browser environment, because they are associated with the V8 engine, but not the V8 engine within a browser (note the difference here).

因此，实质上，未捕获引用错误:未定义缓冲区表示此浏览器中不存在此错误.

So essentially, uncaught refernce error: buffer is not defined means that this this doesn't exist in the browser.

https://nodejs.org/api/buffer.html#buffer_new_buffer_array

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