web -- JS代码库

1. Javascript对象

function myFun(){
    var x;
    var txt = "";
    var person = {fname:"Bill", lname:"Gate", age:56}
    for (x in person){
        txt = txt + person[x] + " ";
     }
     document.getElementById("demo").innerHTML = txt;
}

2. break

cars=["BMW","Volvo","Saab","Ford"];
list:{
document.write(cars[0] + "<br>");
document.write(cars[1] + "<br>");
document.write(cars[2] + "<br>");
break list;
document.write(cars[3] + "<br>");
document.write(cars[4] + "<br>");
document.write(cars[5] + "<br>");
}