is it good to use else javascript code example

Example: else if javascrit

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
 }