这个JS有什么问题

Question

firebug抱怨它有语法错误

if (document.getElementById("fromAddress").value == "") || 
(document.getElementById("fromAddress").value == "Enter Address, City, Directions") {   

Answer 1

你错过了括号,据说你最好这样写它.

var from = document.getElementById("fromAddress").value;
if (from  === "" || from  === "Enter Address, City, Directions") {