javascript logical operation code example

Example 1: or operator javascript

//|| is the or operator in JavaScript
if(a == 1 || b != 'value'){
    yourFunction();
}

Example 2: and operator in javascript

//&& returns true if both values are true
//or returns the second argument if the first is true
var a = true
var b = ""
var c = 1

true && "" //""
"" && 1 //""
false && 5 //false

Example 3: logical operators javascript

// There are 3 Javascript Logical Operators
// || (OR)
// && (AND)
// ! (NOT)

if (a || b) {
	console.log("I will run if either a or b are true");
}

if (a && b) {
	console.log("I will run, if and only if a and b are both true");
}

if (!a) {
	console.log("I will only run if a is false");
}

if (a) {
	console.log("I will only run if a is true");
}