how to write if else if in javascript code example

Example 1: 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 2: function if else javascript

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