Sass.js @imports不起作用

Question

Was looking through this solution:

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

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
});

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";
  */
});

Answer 1

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.

• If you just want to use virtual files, all is documented on: https://github.com/medialize/sass.js/#working-with-files .
• If you want to use a file from you filesystem, you have to make an ajax-call to get the file. When that's done, you can place it in the virtual file and run sass.js

This is how to do it:

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> 

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

2. 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>'); }); }); });