多种对象定义方式
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tags:
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/**
* 对象定义
* @authors Your Name (you@example.org)
* @date 2019-08-18 15:10:38
* @version $Id$
*/
var print0 = (function()
var test = ;
test.test0 = function()
console.log(‘test0‘)
console.log(this)
return test
)() //对象不用new
var print =
test: function()
return ‘fucntion1‘
,
console: function()
console.log(‘test1‘)
console.log(this)
//对象，不用new
var print2 = (function()
var print2 = function()
print2.prototype =
test2: function()
console.log(‘test2‘)
console.log(this)
return new print2()
)() //函数对象要new
var print3 = (function()
var print3 = function()
return
test3: function()
console.log(‘test3‘)
console.log(this)
return new print3()
)() //函数对象要new
//建议使用，对外api方式
var print4 = (function()
function _test41()
console.log(‘test41‘)
//_test41不对外暴露
return
test4: function()
console.log(‘test4‘)
console.log(this)
_test41()
,
test5: function(r, callback)
console.log(callback) //callback回调函数结果在外面执行 function()()
,
test6: function(r, callback)
console.log(typeof callback)
console.log(callback && (callback)(r)) //callback是回调函数在里面执行 function()
)() //对象不用new
var print5 = (function()
function test5(e, ops)
this.e = e;
this.ops = ops;
test5.prototype.test5 = function()
console.log(‘test5‘)
console.log(this)
console.log(this.e, this.ops)
return test5
)() //函数对象在外面new print5 = new print5(1,2)
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <title>Examples</title> <meta name="description" content=""> <meta name="keywords" content=""> <link href="" rel="stylesheet"> <script type="text/javascript" src="./user.js"></script> </head> <body> <h1 id="test">测试</h1> <script type="text/javascript"> print0.test0() print.console() print2.test2() print3.test3() print4.test4() print4.test5(‘param‘,function(r) return ‘callback5‘ ()) print4.test6(‘callback6‘,function(r) return r ) print5 = new print5(1,2) print5.test5() </script> </body> </html>
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