JavaScript-------Switch Statement

Use the switch statement to select one of several code blocks to execute.

Grammar

Switch (n) {Case 1:  Execute code block 1  break;case 2:  Execute code block 2  break;default:  N code that executes when different from 1 and 2

How it works: first set an expression n (usually a variable). The value of the subsequent expression is compared to the value of each case in the structure. If there is a match, the code block associated with the case is executed. Use break to prevent your code from automatically running down a case.

Instance

Displays the week name for today. Please note that sunday=0, Monday=1, tuesday=2, etc.:

var day=new Date (). GetDay (); switch (day) {case 0:  x= "Today it ' s Sunday";  Break;case 1:  x= "Today it ' s Monday";  Break;case 2:  x= "Today it ' s Tuesday";  Break;case 3:  x= "Today it ' s Wednesday";  Break;case 4:  x= "Today it ' s Thursday";  Break;case 5:  x= "Today it ' s Friday";  Break;case 6:  x= "Today it ' s Saturday";  break;}

JavaScript-------Switch Statement