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creativ13 [48]
3 years ago
8

Which statement describes the primary purpose of JavaScript?

Computers and Technology
1 answer:
cupoosta [38]3 years ago
5 0

a.The primary purpose of JavaScript is to enable features such as validation of forms before they are submitted to the server.

<u>Explanation:</u>

On web pages before submitting the day, end user has to do client validations such as whether data enter is correct data type,  so end user for  client side validation been eiher by VBSCRIPT (visual basic script language) or (JavaScript java script).  Internet explorer or Microsoft edge uses VBSCRIPT for web page validation.

For visual basic script languages end user should have enough knowledge   on visual basic programming languages. Same away for java script end user have enough knowledge on c language.

Both Scripts are used for client side validation on success of validation end user will submit web page form for next action. JavaScript is used in most of the browser including Microsoft explorer or Microsoft edge.

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Add Try/Catch error checking To make sure that the user enters valid values in your program. To catch negative values passed to
ryzh [129]

Answer:

int main()

{

 cout<<"Enter the size of array\n";

 int n;

 try{

 cin>>n;//get size of array

 if (n > 0){

 List list;//make object of list class

 try{

     list.init(n);//initialize the list

     list.fillData();//fill the data

     list.print();//print the data

     list.sortData();//sort the  data

     cout<<"\n--- After sorting the data---\n";

     list.print();//print the data

     cout<<"Enter the element to search\n";

     int x;

     cin>>x;//get element to search

     list.searchElement(x);//call the search function

 }

 catch (std::bad_alloc){

   cout<<"Sorry, could not allocate memory for list object.";

 }

 }else{

   throw('Negative Number detected');

 }

 }

 catch (int n){

   cout<<"The number should be a positive integer.";

 }

   return 0;

}

Explanation:

The try and catch keywords come in pairs, as they are used to control exceptions in the C++ source code. The try keyword checks for error in the source code given the condition (if the n integer variable is greater than 0). If the condition is met, the code in the try code block runs otherwise the catch keyword catches the error of a negative number (if the n variable in less than 0).

4 0
3 years ago
If Johanna wants to label the x- and y-axes in Excel she should click Layout, then what?
denis-greek [22]
<span> If Johanna wants to label the x and y axes in an Excel chart, she should click anywhere on the chart, then click on the Layout tab. Under Labels, she should click on Axis Titles, and select the Secondary Horizontal Axis Title for x axis or <span>Secondary Vertical Axis Title for y axis. She should then select the text that is in the Axis Title box, and type the title name that she wants.</span></span>


6 0
3 years ago
Encoding a video format and then decoding it during playback is one of the functions of MPEG-4 and H.264 file players. MPEG-4 an
Sergio [31]

Answer:

video codecs

Explanation:

A video converter can be defined as a software application or program designed to avail end users the ability to convert video files from one digital format to another. After the conversion of the video is complete, the components of the video format such as aspect ratio (e.g 16:9, 4:3 etc), resolution (e.g 1028×760, 640×320), audio and video codecs (e.g mp3, mp4, H.264 etc), the bit rate are also converted depending on the choice of the user.

Encoding a video format and then decoding it during playback is one of the functions of MPEG-4 and H.264 file players. MPEG-4 and H.264 are known as video codecs.

7 0
3 years ago
Read 2 more answers
Task 1 – File Input
e-lub [12.9K]

Answer:

Check the explanation

Explanation:

using System;

using System.IO;

                 

public class Program

{

 

  public static void Main()

  {

      string[] lines;

      Console.WriteLine("enter name of the file");

      String fileName=Console.ReadLine();

     

      Console.WriteLine("enter path of the file");

      String filePath=Console.ReadLine();

     

      using (StreamReader streamReader = File.OpenText(filePath))

      {

          String text = streamReader.ReadToEnd();

          lines = File.ReadAllLines(filePath);

      }

      Console.WriteLine("Enter path of the file to write");

      String outputFilePath = Console.ReadLine();

      bool fileExist = File.Exists(outputFilePath);

      if (fileExist)

      {      

                  overWriteOrChangeFileName(outputFilePath);          

      }

      else

      {

          File.Create(outputFilePath);

          File.WriteAllLines(outputFilePath, lines);

      }

      Console.Write("Input file Path"+filePath);

      Console.Write("output file path"+outputFilePath);

     

      void overWriteOrChangeFileName(String filePathtoCheck){

          Console.WriteLine("File exists. Do you want to overwrite the file or do you want to change the location and file name of the new file.Press Y to overwrite and press C to change the location and filename");

          String userInput=Console.ReadLine();

          if(userInput.Equals("Y")){

File.WriteAllLines(outputFilePath, lines);

          }else{

              Console.WriteLine("enter new path of the file including filename");

              String NewFileName=Console.ReadLine();

              outputFilePath=NewFileName;

              if(File.Exists(outputFilePath)){

                  overWriteOrChangeFileName(outputFilePath);                  

              }

              else

      {

          File.Create(outputFilePath);

          File.WriteAllLines(outputFilePath, lines);

      }

          }

      }

  }

 

}

3 0
4 years ago
____ convert a program design developed by a systems analyst or software developer using one of many computer languages.
erica [24]

Answer:

"Programmer " is the correct answer for the following question.

Explanation:

A programmer is a person who created the software They are basically a coder who develop a code for the program or the software. They are specialists in some in the programming code area. The programmer are writing the program for a different kind of software.

The main objective programmer they convert the program design which is developed  by a systems analyst or system designer using a different kind of computer language  

4 0
3 years ago
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