javascript and

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

//&& means and
if(hungry && slow && anxious){ 
	var cause="weed";
}//The OR operator in Javascript is 2 verticals lines: ||

//Example
var booleanOne = true;
var booleanTwo = false;

if(booleanOne || booleanTwo) {
	//At least one boolean is true -> code excuted
}//x = 5

operator  |	example	 |	output  |	explination

==			x == 8		false		equal to
			x == 5		true
			x == "5"	true

===			x === 5		true		equal value and type
			x === "5"	false

!=			x != 8		true		not equal

!==			x !== 5		false		not equal value or not equal type
			x !== "5"	true
			x !== 8		true

>			x > 8		false		greater than

<			x < 8		true		less than

>=			x >= 8		false		greater than or equal to

<=			x <= 8		true		less than or equal toif(booleanOne && booleanTwo) {
	//Both booleanOne and booleanTwo are true here
}function sum(...numbers) {
	return numbers.reduce((accumulator, current) => {
		return accumulator += current;
	});
};
 
sum(1,2) // 3
sum(1,2,3,4,5) // 15// ===	means equal value and equal type
var x = 5

// true
x === 5

// false
x === "5"
Source

Also in JavaScript: