几道面试题！

Question

(1)document.getElementById("user.name")
(2)window.showModalDialog()
window.showModelessDialog()
(3)document.getElementById("country").value
document.getElementById("country").options[document.getElementById("country").selectedIndex].text

Answer 1

1)document.getElementById("user.name") 
//补充 document.getElement(0) 
(2)window.showModalDialog() 
window.showModelessDialog() 
(3)document.getElementById("country").value 
document.getElementById("country").options[document.getElementById("country").selectedIndex].text