create function that includes if statement in java script code example

Example 1: javascript if and statement

let a = 1;
let b = 2;
if(a == 1 && b ==2){
	// Code here 
}

Example 2: how many else statements can be added in javascript

if (condition a) {
    // code that will execute if condition a is true
} else if (condition b) {
    // code that will execute if condition b is true
} else if (condition c) {
    // code that will execute if condition c is true
} else {
    // code that will execute if all above conditions are false
}