1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Title</title> 6 <script> 7 8 /*callee*/ 9 10 function fn(canshu1,canshu2) { 11 console.log(canshu1 === arguments[0]); 12 console.log("arguments" , arguments); 13 function fn2() { 14 console.log("****"); 15 console.log("arguments[0].callee"); 16 console.log(arguments.callee === fn2); 17 } 18 return fn2; 19 } 20 21 // console.log() 22 // 1.如果碰到的是DOM对象/标签节点，会直接输出函数样子 23 // 2.碰到函数相当于 24 // console.log(fn); 25 // console.log(document); 26 // console.dir(fn); 27 28 var res = fn(1,2); 29 console.dir(res); 30 console.dir(fn(1,2)()); 31 32 33 34 /*caller*/ 35 36 function fnOut(inName) { 37 console.log("--fnOut.caller---"); 38 console.log(fnOut.caller === fnIn); 39 return inName; 40 } 41 42 function fnIn() { 43 var inName = "我是fnIn的名字"; 44 fnOut(inName); 45 } 46 47 console.log(fnIn()); 48 </script> 49 </head> 50 <body> 51 52 </body> 53 </html>