The browser window object has many members, two of which are window.prompt() that allows us to send a message to the user and solicit a value at the same time, and window.alert() that displays a message box to the user. let val prompt("An instruction here:"); alert("A message here."); The Math object has a pow(number, exponent) method that will return number to the power of exponent: > "12 to the 4th power is: " + Math.pow(12, 4); < '12 to the 4th power is: 20736' To place a button in a document, use the button element; use the onclick attribute of the button to call the getAndShow() function you have written. Button Text Button Text Note that an HTML5 button element has no built-in functionality: if we want the button to do something we have to write a JavaScript function that provides whatever functionality we require. Create an HTML document and link a JavaScript file to the document in the document header. Write a function getAndShow() in the JavaScript file that will use a prompt dialog to ask the user for any number. Use the number returned by the prompt to compute the fifth power of that number and display it in a message box with a suitable message. localhost:8383 says Enter any number: 123.45 localhost:8383 says The 5th power of 123.45 is 28671833852.46355 OK Cancel OK
The browser window object has many members, two of which are window.prompt() that allows us to send a message to the user and solicit a value at the same time, and window.alert() that displays a message box to the user. let val prompt("An instruction here:"); alert("A message here."); The Math object has a pow(number, exponent) method that will return number to the power of exponent: > "12 to the 4th power is: " + Math.pow(12, 4); < '12 to the 4th power is: 20736' To place a button in a document, use the button element; use the onclick attribute of the button to call the getAndShow() function you have written. Button Text Button Text Note that an HTML5 button element has no built-in functionality: if we want the button to do something we have to write a JavaScript function that provides whatever functionality we require. Create an HTML document and link a JavaScript file to the document in the document header. Write a function getAndShow() in the JavaScript file that will use a prompt dialog to ask the user for any number. Use the number returned by the prompt to compute the fifth power of that number and display it in a message box with a suitable message. localhost:8383 says Enter any number: 123.45 localhost:8383 says The 5th power of 123.45 is 28671833852.46355 OK Cancel OK
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
Transcribed Image Text:The browser window object has many members, two of which are window.prompt() that allows us to send a message to the user and solicit a value at the same time, and window.alert() that displays a message
box to the user.
let val = prompt("An instruction here: ");
alert ("A message here.");
The Math object has a pow(number, exponent) method that will return number to the power of exponent:
> "12 to the 4th power is: " + Math.pow(12, 4);
< '12 to the 4th power is: 20736'
To place a button in a document, use the button element; use the onclick attribute of the button to call the getAndShow() function you have written.
<button onclick="yourFunction();">Button Text</button>
Button Text
Note that an HTML5 button element has no built-in functionality: if we want the button to do something we have to write a JavaScript function that provides whatever functionality we require.
Create an HTML document and link a JavaScript file to the document in the document header. Write a function getAndShow() in the JavaScript file that will use a prompt dialog to ask the user for any number.
Use the number returned by the prompt to compute the fifth power of that number and display it in a message box with a suitable message.
localhost:8383 says
Enter any number:
123.45
localhost:8383 says
The 5th power of 123.45 is 28671833852.46355
OK
Cancel
OK
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Recommended textbooks for you
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education