how to use and in js code example

Example 1: javascript and

var hungry=true;
var slow=true;
var anxious=true;

//&& means and
if(hungry && slow && anxious){ 
	var cause="weed";
}

Example 2: less than equal to in javascript

| <= | less than or equal to |	x <= 8 | true |

Example 3: and javascript

let a = 1;
let b = -1;

if (a > 0 & b > 0){
	console.log("and");
} else if (a > 0 || b > 0){
	console.log("or");
}