Concept explainers
In this case, defining the function is a technique that can be reusable in JavaScript code.
Hence, the correct answer is option “A”.
Explanation of Solution
Defining a function:
It is a technique which is used to perform the particular task when the function is called by user using its name. The function can be used multiple times by calling the function in JavaScript. So, the defined function can be reused in JavaScript code.
Explanation for incorrect options:
Create a script block:
In this option, creating a script is a block of code with “<script>” element. This block is used to write the set of code and the block is cannot be reused by the user.
Hence, the option “B” is wrong.
Define an “if” statement:
In this option, “if” statement is a conditional statement which is used to check the value of variable with its appropriate condition. If the condition returns true, then it displays the “true” block, otherwise it executes “false” block. So, it cannot be reused by user.
Hence, the option “C” is wrong.
Use an onclick event handler:
“Onclick” is an event handler which is processed when the user clicks on the event. It is a predefined technique and used for “click” event.
Hence, the option “D” is wrong.
Want to see more full solutions like this?
Chapter 14 Solutions
Web Development and Design Foundations with HTML5 (9th Edition) (What's New in Computer Science)
- Task: Write a program in JavaScript which takes three paragraphs as input and computes the following tasks. 1. Print all the words, each of which is present in all the three paragraphs. 2. Highest occurring word in the first paragraph. 3. Highest occurring word in the Second paragraph. 4. Highest occurring word in the Third paragraph. Important: ● CSCS 342: Web Application Development Assignment 2 ● Make a folder and rename it with your roll number only. Make an external JavaScript file and add all code in it. Rename it with your Name-Roll Number.js (else you will not get any marks for it) Take inputs and display result in a single HTML file. The name of your HTML file will be YourName_Roll No.htmlarrow_forwardUsing the IDLE development environment, create a Python script named tryme4.py. (Note: an alternative to IDLE is to use a free account on the pythonanywhere website: ) IDLE has both an interactive mode and a script mode. You must use the script mode to develop your script. Your script must use meaningful variable names and have comments that describe what is happening in your script. Comments may describe the assignment of a value to a variable, a computation and the assignment of the result to a variable, or the display of the result. Write a function in this file called nine_lines that uses the function three_lines (provided below) to print a total of nine lines. Now add a function named clear_screen that uses a combination of the functions nine_lines, three_lines, and new_line (provided below) to print a total of twenty-five lines. The last line of your program should call first nine_lines and then the clear_screen function. The function three_lines and new_line are defined below…arrow_forwardTask: Write a program in JavaScript that takes three-paragraphs as an input using DOM (document object model). • It returns all the similar binary numbers which occur in all of the three paragraphs. • The input and output of the program must be displayed on the same HTML page. • There must be a single submit button on screen. For Example: Input Paragraphs Entered: hello 0000 0001 bye hello 1110 kilo 99 1111 haha 0000 0001 tata bye bye 1110 kilo 99 1110 haha 0000 loop tata bye bye 1010 kilo 99 lalala 111o Submit Output: Common Binary Numbers in above paragraphs are: 0000 1110arrow_forward
- Write a tech note for an online programmer journal. It should show Java programmers how easy it is to debug using the BlueJ breakpoint feature. You may use single or double spacing, and you may include a small screen shot, but your note must completely fill exactly one page. Include a title and by-line. Upload a PDF document.arrow_forward3) Write a java program for displaying one flag at a time from nine countries flags. You may have a base Form with nine buttons (you may use Listview to trigger the events as well or any other method) and upon clicking one of the buttons (or selecting Listview item, or Combo box item) with the country name on it the image box / Label icon should display the country flag.arrow_forwardDO NOT COPY FROM OTHER WEBSITES Code with comments and output screenshot is must for an Upvote. Thank you!!!arrow_forward
- 8. CP09 DO NOT COPY FROM OTHER WEBSITES Code with comments and output screenshot is must for an Upvote. Thank you!!!.arrow_forwardCreate a javaFX application that uses the TextField to get a message and encode and decodeit make use four buttons to control the kind of cipher used and to specify whether to encode or decode the message, use a TextField to getthe number used in the constructor for the ciphers.arrow_forwardWrite a webpage with JavaScript code to perform the following tasks: answer all exercises.arrow_forward
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education