//Longhand 
let imagePath; 
let path = getImagePath(); 
if(path !== null && path !== undefined && path !== '') { 
  imagePath = path; 
} else { 
  imagePath = 'default.jpg'; 
} 

//Shorthand 1
let imagePath = getImagePath() || 'default.jpg';
//Shorthand 2
let imagePath = getImagePath() ?? 'default.jpg';