[NPM] Use npx to run commands with different Node.js versions

最新推荐文章于 2025-01-13 15:11:08 发布

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原文链接：http://www.cnblogs.com/Answer1215/p/10518820.html

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#javascript #ViewUI

本文介绍如何使用NPX工具在不同版本的Node.js中运行代码包，这对于测试新特性尤其有用。例如，演示了如何在Node.js 8.3.1版本下运行包含对象扩展语法的代码，而在8.2.1版本下则会因不支持该语法而报错。

We will use npx to run a package using different versions of Node.js. This can become valuable when testing the various new features that are introduced in versions of Node.js.

For example this code:

let a = { one: 1, two: 2 }; console.log( { ...a, three: 3 } );

If we run this code with node@8.2.1, because version 8.2.1 did not yet have support for object spread. It makes sense why we would get an unexpected token error at the ...a location.

We can ask NPX to run with a different node version: