JavaScript Type a value with no quotation marks after a case in a switch statement

One. Select the day of the week with switch

In this case, for example: case= "Monday"

Two. Use switch to select simple numbers

In this case, for example: case= ' 1 '

Three. Use switch to select a value that has the function applied

Example: Switch (Preseint (GRADE/10)) {

Case=6:

document.write ("The student's score is Middle")

}

Excuse me, when does the quotation mark after case add, when does not have the specific classification?

First write, hope that the great God can guide, Dogo Katsuragi will go deep into the study

JavaScript Type a value with no quotation marks after a case in a switch statement