else and if with objects javascript code example

Example 1: javascript how to do if else

if (condition1) {
  //  block of code to be executed if condition1 is true
} else {
  //  block of code to be executed if the condition1 is false
}

Example 2: if and if and else javascript

if (expression 1) {
   Statement(s) to be executed if expression 1 is true
} else if (expression 2) {
   Statement(s) to be executed if expression 2 is true
} else if (expression 3) {
   Statement(s) to be executed if expression 3 is true
} else {
   Statement(s) to be executed if no expression is true
}