if else js

JavaScript
if (condition1) {
  //  block of code to be executed if condition1 is true
 }
else if (condition2) {
  //  block of code to be executed if the condition1 is false and 
  //  condition2 is true
} else {
  //  block of code to be executed if the condition1 is false and 
  //  condition2 is false
 }If - Else Statements
if (condition) {
// what to do if condition is met
} else {
// what to do if condition is not met
}
if (condition1) {
  // code to be executed if condition1 is true
} else if (condition2) {
  // code to be executed if the condition1 is false and condition2 is true
} else {
  // code to be executed if the condition1 is false and condition2 is false
}var age=20;
if (age < 18) {
	console.log("underage");
} else {
	console.log("let em in!");
}if (5 < 10) {
	console.log("5 is less than 10");
} else {
	console.log("5 is now bigger than 10")
}let A = 1;
let B = 0;
if (A == 1 || B == 1){
  	// some code here
}
Source

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