用JSPM运行`fs.writeFile`

Question

I'm trying to use Node's fs through jspm . After having installed fs with jspm install fs , I'm trying to use the writeFile method. I'm getting an error.

Uncaught (in promise) TypeError: fs.writeFile is not a function

When I log fs to the console, I see that it only has one method.

---

main.js

import fs from 'fs';
console.log(fs);

---

Why is fs only showing one available method?

Answer 1

readFileSync is the only function supported. The entire module is only has that one function:

exports.readFileSync = function(address) {
  var output;
  var xhr = new XMLHttpRequest();
  xhr.open('GET', address, false);
  xhr.onreadystatechange = function(e) {
    if (xhr.readyState == 4) {
      var status = xhr.status;
      if ((status > 399 && status < 600) || status == 400) {
        throw 'File read error on ' + xhr.responseURL;
      }
      else
        output = xhr.responseText;
    }
  }
  xhr.send(null);
  return output;
}

From https://github.com/jspm/nodelibs-fs/blob/master/fs.js