前端项目中 Cmd J 怎么用？CMD 规范模块化解决方案详解

define(function (require, exports, module) {
  console.log('in module1.')
  function sum(num1, num2) {
    console.log('module1 sum function.', num1, num2)
    return num1 + num2
  }
  exports.sum = sum
})

define(function (require, exports, module) {
  console.log('in module2')
  const str = '优雅哥测试'
  function calculate (n1, n2) {
    const m1 = require('./module1')
    return m1.sum(n1, n2)
  }
  exports.calculate = calculate
})

define(function (require, exports, module) {
  console.log('in index')
  const m2 = require('./module2')
  console.log(m2.str)
  console.log(m2.calculate(, ))
  console.log(m2.calculate(, ))
  console.log(m2.calculate(, ))
  require.async('./module3', function (m3) {
    console.log(m3.demo())
  })
})

<script src="./sea.js">script>
<script>
  seajs.use('./index.js')
script>