The body
of a switch statement is known as a switch block. A statement in the switch
block can be labelled with one or more case or default labels. The switch
statement evaluates its expression, then executes all statements that follow
the matching case label.
Syntax
switch(expression){
case expression1:
//statements
break;
case expression2:
//statements
break;
default:
//statements
}
switch.html
<!DOCTYPE html> <html> <head> <title>switch statement</title> </head> <body> <script type="text/javascript"> var day = parseInt(prompt("Enter an integer between 1 and 7", 6)); switch (day) { case 1: document.write("Sunday"); break; case 2: document.write("Monday"); break; case 3: document.write("Tueday"); break; case 4: document.write("Wednesday"); break; case 5: document.write("ThursDay"); break; case 6: document.write("Friday"); break; case 7: document.write("Saturday"); break; default: document.write("You entered wrong day number"); } </script> </body> </html>
Load above
html page in a browser, it prompts for input.
If you
enter 1, it prints Sunday
If you
enter 2, it prints Monday
If you
enter 3, it prints Tueday
If you
enter 4, it prints Wednesday
If you
enter 5, it prints ThursDay
If you
enter 6, it prints Friday
If you
enter 7, it prints Saturday
for all
other inputs, it print "You entered wrong day number".
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