Sass.js @imports 不起作用 [英] Sass.js @imports Don't Work

问题描述

正在查看此解决方案:

https://github.com/medialize/sass.js/

经过多次试验和错误后，我在转换如下所示的 scss 字符串时开始工作:

And after much trial and error I got it to work when converting a scss string that looks something like this:

var testScss1 = '$testColour1: #ff0000' + 
'.box { color: $testColor1 }';

var sassWithVariables = new Sass();

sassWithVariables.compile(testScss1, function (result) {
    // result.text is defined and converts perfectly
});

但是这个导入名为 _demo.scss 的文件的示例不起作用，我想把椅子扔到房间对面！

But this example with an import to a file called _demo.scss, will not work and I want to throw my chair across the room!

var testScss2 = '@import "_demo";';

var sassWithImports = new Sass();

sassWithImports.compile(testScss2, function (result) {
    /*
    get this error:

    ERROR Error: file to import not found or unreadable: _demo
       Current dir: 
        on line 1 of stdin
   >> @import "_demo";
  */
});

推荐答案

据我了解 sass.js，它创建了一个虚拟 sass 文件:DOM 中的一个变量.它不会使用您文件系统中的真实文件.

As far as i understand sass.js, it creates a virtual sass-file : a variable in the DOM. It will not use a real file from your filesystem.

• 如果您只想使用虚拟文件，所有内容都记录在:https://github.com/medialize/sass.js/#working-with-文件.
• 如果要使用文件系统中的文件，则必须进行 ajax 调用以获取该文件.完成后，您可以将其放置在虚拟文件并运行 sass.js

这是如何做到的:

1. 您的服务器不知道 .SCSS 和 .MEM 的 MIME 类型，因此您必须说明.
   在 Windows 服务器上，您可以在您的 web.config(在您的文件夹的根目录中)中执行此操作:

1. Your server doesn't know the mime-type of .SCSS and .MEM, so you'll have to state it.
   On a windows-server, you can do it in your web.config (in the root of your folder) like this:

<?xml version="1.0"?>
<configuration>
  <system.web>
    <compilation debug="true" targetFramework="4.0"/>
  </system.web>
<system.webServer>
      <staticContent>
         <mimeMap fileExtension=".mem" mimeType="application/octet-stream" />
         <mimeMap fileExtension=".scss" mimeType="text/css" />
      </staticContent>
   </system.webServer>
</configuration>

我不知道如何在其他环境中做到这一点，但我相信它不会太难找到.

I don't know how to do it on other environments, but i'm sure it won't be too hard to find.

编写javascript来获取文件，并将其创建为虚拟文件.以下代码适用于 jquery 1.8.3，您必须在服务器上运行它.
在这个例子中，我得到了 2 个 sassfiles 而不是一个.我不知道你想用生成的 css 做什么，但我假设你想把它放在页面上的某个地方来影响你的 html.

Write the javascript to get the file, and create it as a virtual file. The following code works with jquery 1.8.3 and you must run this on a server.
In this example i'm getting 2 sassfiles instead of just one. I don't know what you want to do with the generated css, but i assume you want to put it somewhere on the page to affect your html.

var myexternalfileOne = ''; 
var myexternalfileTwo = ''; 
$( document ).ready(function() {
    $.when(
         $.ajax({
             url: "/sass/_utilities.scss", dataType: "text",
             success: function(data) {
                // the contents of the real file is now put into the empty var:
                 myexternalfileOne = data;
             }
         }),
         $.ajax({
             url: "/sass/_styling.scss", dataType: "text",
             success: function(data) {
                // the contents of the real file is now put into the empty var:
                 myexternalfileTwo = data;
             }
         })
     ).then( function(){
        // all files are loaded and put into vars. Finally, we initiate SASS.JS: 
         var sass = new Sass();
         sass.writeFile('_virtualfileOne.scss', myexternalfileOne);
         sass.writeFile('_virtualfileTwo.scss', myexternalfileTwo);
         sass.compile('@import "_virtualfileOne"; @import "_virtualfileTwo";', function(result) {
             // SASS.JS has created css out of the sass-files from your filesystem. 
             // If we want it to affect our page, we just put it somewhere, in this case, we put it before a div#uniqueid
             $('div#uniquediv').prepend('<style>' + result.text+ '</style>'); 
         });
     });
});

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