What does node sass do?

node sass is a library that binds Node.js to LibSass [the C version of the popular stylesheet preprocessor Sass], which allows users to convert [.scss] files incredibly quickly Compile locally to css and automatically compile by connecting middleware.

The operating environment of this article: Windows 7 system, node v4.4.3 version, Dell G3 computer.

What is Sass?

Sass is a preprocessor scripting language that can be interpreted or compiled into Cascading Style Sheets (CSS).

Sass consists of two syntaxes: the older syntax uses indentation to separate blocks of code and newlines into separate rules; the newer syntax SCSS uses a block format like CSS. It uses curly braces to represent blocks of code and semicolons to separate lines within a block.

Indented syntax and SCSS files are traditionally given extensions .sass and .scss respectively

How to install Node-sass ?

In view of the domestic environment, node-sass is too difficult to install. It can be installed directly through Taobao’s npm image.

1. Install cnpm (https://npm.taobao.org/)

npm install -g cnpm --registry=https://registry.npm.taobao.org

2. Install node-sass in the project folder

cnpm install --save-dev node-sass

Instructions: - -save-dev automatically adds node-sass to package.json in the project folder.

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