node-typescript
The TypeScript API exposed to nodejs. Use to compile typescript code in memory.
Usage
install node-typescript with npm:
npm i node-typescript
Create a file with this sample code:
var tsc = require('./node_modules/node-typescript/lib/compiler');
var compiler = tsc.compiler;
tsc.initDefault();
var code = '\
class Greeter {\
greeting: string;\
constructor(message: string) {\
this.greeting = message;\
}\
greet() {\
return "Hello, " + this.greeting;\
}\
}\
var greeter = new Greeter("world");\
var button = document.createElement("button");\
button.innerText = "Say Hello";\
button.onclick = function() {\
alert(greeter.greet());\
};\
document.body.appendChild(button);\
';
tsc.resolve(__dirname + '/xxx.ts', code, compiler);
compiler.typeCheck();
var stdout = new tsc.EmitterIOHost();
compiler.emit(stdout);Get the javascript output in stdout.fileCollection. To this example the javascript output is:
{ '.../xxx.js':
{ lines:
[ 'var Greeter = (function () {',
' function Greeter(message) {',
' this.greeting = message;',
' }',
' Greeter.prototype.greet = function () {',
' return "Hello, " + this.greeting;',
' };',
' return Greeter;',
'})();',
'var greeter = new Greeter("world");',
'var button = document.createElement("button");',
'button.innerText = "Say Hello";',
'button.onclick = function () {',
' alert(greeter.greet());',
'};',
'document.body.appendChild(button);' ],
currentLine: '' } }
