ES6 Modules

export & import

 例1：lib/math.js

export function sum(x, y) {
  return x + y;
}
export var pi = 3.141593;

 

import * as math from "lib/math";
alert("2π = " + math.sum(math.pi, math.pi));


import {sum, pi} from "lib/math";
alert("2π = " + sum(pi, pi));

例2：lib/math.js

export default {
  pi: 3.141593,
  sum(x, y) {
    return x + y;
  }
}

 

import math from '/lib/math';
alert("2π = " + math.sum(math.pi, math.pi));

 

動態的加載、異常加載

System.import('lib/math').then(function(m) {
  alert("2π = " + m.sum(m.pi, m.pi));
});

// Directly manipulate module cache
System.get('jquery');
System.set('jquery', Module({$: $})); // WARNING: not yet finalized