var a=34;
var b=0
document.write(a/b)

<script>
var x="10">3
document.write(x);
</script>

var alpha="apples";
 var beta="Apples";
 var output=alpha>beta;
 document.write(output);

var alpha=(15<20) && ("pen">"Sword");
 var beta=("big">"tall") && (20<30); 
 document.write(alpha+","+beta);

var a=30*5+7;
document.write(a);

let x=0/0;
let y=0/4;
let z=2/0;
document.write(x+","+y+","+z);

<script>
 var a=4;
 document.write(a++);
 document.write(++a);
 document.write(a--);
 document.write(--a);
</script>