Can the value inside double quotes be variable?

Question

function aa(){
hei=100;
wid=100;
function aa(){
wid=100;
wid =10;
mygetTime() ;
  box.style.width:'hei "xp"';
  if(hei=200&&trop=1){
    return;
  } Can the value inside the double quotes be variable

Answer 1

Double quotes are the delimiters of strings, and variables are also interpreted as ordinary strings