Format Output:
- It is important to format the results before display to the user.
- Write() method display information on web page.
- We display information by concatenating with proper messages to make the user more readable.
The table giving the examples to concatenate the messages with values:
| Syntax | Example |
| int + int -> int | 10 + 20 = 30 |
| String + String -> String | “Hello” + “World” -> HelloWorld “10” + “20” -> 1020 |
| String + int -> String | “Sum = “ + 10 -> Sum = 10 |
| String + int + int -> String | “Sum = “ + 10 + 20 -> Sum = 1020 |
| String + (int + int) -> String | “Sum = “ + (10+20) -> Sum = 30 |
| String + double -> String | “PI = “ + 3.142 -> PI = 3.142 |
| String – int -> Error | “Sum = “ – 10 -> Error |
Code:
| <!doctype html> <html> <body> <script> document.write(10 + 20 + “<br/>”); document.write(“Hello” + “World” + “<br/>”); document.write(“Sum = ” + 10 + “<br/>”); document.write(“PI value = ” + 3.142 + “<br/>”); document.write(“Sum = ” + 10 + 20 + “<br/>”); document.write(“Sum = ” + (10 + 20) + “<br/>”); </script> </body> </html> |
Output:
