First you will need to install node definitions for Typescript. You can find the definitions file here:
https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/node/node.d.ts
Once you've got file, just add the reference to your .ts file like this:
/// <reference path="path/to/node.d.ts" />
Then you can code your typescript class that read/writes, using the Node File System module. Your typescript class myClass.ts can look like this:
/// <reference path="path/to/node.d.ts" />
class MyClass {
// Here we import the File System module of node
private fs = require('fs');
constructor() { }
createFile() {
this.fs.writeFile('file.txt', 'I am cool!', function(err) {
if (err) {
return console.error(err);
}
console.log("File created!");
});
}
showFile() {
this.fs.readFile('file.txt', function (err, data) {
if (err) {
return console.error(err);
}
console.log("Asynchronous read: " + data.toString());
});
}
}
// Usage
// var obj = new MyClass();
// obj.createFile();
// obj.showFile();
Once you transpile your .ts file to a javascript (check out here if you don't know how to do it), you can run your javascript file with node and let the magic work:
> node myClass.js