Javscript dout in assignment ?

Please explain solution for the below as i am not able to get the same

1)concatenate two string, and give space between those stings.(dout)

2)Add two number and show result in another browser window. (dout)

javascript is ignoring spaces.Please advice.

Regards,
Vishwa

Hi Vishwanath,

1 - var a="hello"
var b="world"

var c=a+" "+b
alert(c)

2 - inside event, simply use document.write() method or define one window and display the result inside.
myWindow = window.open('','','width=200,height=100');
myWindow.opener.document.write("<p>display result here.</p>");