JavaScript Comparison and Logical Operators

 1 var r = 1;
 2 var result = r || 2;
 3 console.log(result);
 4 //output: 1
 5 
 6 r = 0;
 7 result = r || 2;
 8 console.log(result);
 9 //output: 2
10 
11 r = 0;
12 result = r || "string";
13 console.log(result);
14 //output: string