JS-动态和匿名函数
2015-11-10 08:54
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> </body> <script type="text/javascript"> /* * js的动态函数和匿名函数 * 动态函数 function getSum(){ return 50; } js提供了内置对象 Function * 匿名函数 * 没有名称的函数 */ var param1 = "x,y"; var param2 = "var sum;sum=x+y;return sum;"; var param3 = "var sum;sum=x*y;return sum;"; var add = new Function(param1,param3); var sum = add(4,5); // alert(sum); function add2(x,y){ var sum; sum = x*y; return sum; } // add2(5,6); var getSum = function (){ return 100; }; // alert(getSum()); </script> </html>