Posted in All Posts, Semester 2

JavaScript Basics – Dialog Boxes

There are three types of dialog boxes in JS.

  • Alert
  • Prompt
  • Confirm

Alert Box

It is used to display an alert with user’s desired message.
Syntax- alert("your message");
See the example below.

Try It Yourself

Prompt Box

It is used to take an input from the client.
Input via prompt function is always taken to be string.
To convert it to number, you have to use in-built js functions like parseInt(), Number() etc.
Syntax- prompt("message to user about what to input");
Below is an example.

Try It Yourself

Confirm Box

It is used to accept a true/false (1 or 0) value from the user.
Syntax- confirm("Do you want to exit?");
Below is an example to show how confirm() works.

Try It Yourself

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