function getArgs(){ var qs = location.search.length>0?location.search.substring(1):""; var items = qs.split("&"); var arr = []; var item = null, name=null,value=null; for(var i=0;i<item

var num = 0; var max = 5; var id = null; function box(){ num++; document.getElementById("num").innerHTML += num; if(num == 5){ clearInterval(id) // 不能用this，this指向window } }

function factorial(num){ if(num<1){ return 1; } else{ return num*factorial(num-1); } } var anotherFactorial = factorial;  factorial = null;  alert(anotherFactorial(4)); //

循环里面的匿名函数取得的任何变量都是最后一个值function box(){ var arr = []; for(var i=0;i<5;i++){ arr[i] = function(){ return i; } } return arr; } var b = box(); for(var i=0; i<5; i++){ a

1.找出所有的lvar str = "hello ,i love this life!"; var pos = str.indexOf("l"); var arr = []; while(pos>-1){ arr.push(pos); pos = str.indexOf("l",pos+1); } alert(arr.join("|"));