if else statement js code example

Example 1: javascript if else

var age=20;
if (age < 18) {
	console.log("underage");
} else {
	console.log("let em in!");
}

Example 2: else if javascript

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
}

Example 3: JavaScript if else and else if

if (condition) {
  //  block of code to be executed if the condition is true
}
//-------------
if (hour < 18) {
  greeting = "Good day";
}
//-------------
if (condition) {
  //  block of code to be executed if the condition is true
} else {
  //  block of code to be executed if the condition is false
}
//-------------
if (hour < 18) {
  greeting = "Good day";
} else {
  greeting = "Good evening";
}
//-------------
if (time < 10) {
  greeting = "Good morning";
} else if (time < 20) {
  greeting = "Good day";
} else {
  greeting = "Good evening";
}

Example 4: javascript if statement

if (5 < 10) {
	console.log("5 is less than 10");
} else {
	console.log("5 is now bigger than 10")
}

Example 5: function if else javascript

function lessThan100(a, b) {
  let sum;
  if (a + b >= 100) {
    result = false;
  } else {
    result = true;
  }
  return result;
}