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Please help me with this code for javascript. <!DOCTYPE html> <html> <head> <title>Strings and Arrays</title> <script>...

Please help me with this code for javascript.

<!DOCTYPE html>

<html>

<head>

<title>Strings and Arrays</title>

<script>

function wrangleArray() {

var string1 = prompt("Enter: This class is going to fast");//Must be entered by the user

var string1 = "";//Is this right? I want that string to change later by a series of prompt questions

document.getElementById("div1").innerHTML = "<p>" + sentence + "</p>";

var words = sentence.split(" ");//I need to convert my string to an Array is this the way to do it?

var words = prompt("Choose which words to replace: This class is going to fast");//I want the user to enter any of the words from the string

var words1 = prompt("Replace with these words.");//I want the user to enter new words to replace my original striing

/*Here is where I am having problems making this work. I don't know if what i want to do is possible in JS without creating too long of code

I wanted to make a simple codes that too my prompt string and gave the user options to change the sentence around with arrays, replace() and the final outcome of the sentence should be toUpperCase().

*/

var message = words.splice(3,4,"fun");//From. this point the code does not comply.

alert('Removed words: ' + message);

document.getElementById("div2").innerHTML = "<p>" + words.join(" ") + "</p>";

}

</script>

</head>

<body>

<div id="div1"></div>

<div id="div2"></div>

<script>wrangleArray();</script>

</body>

</html>

thank you

engineering   Computer-Science   
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Homework Answers

Answer #1

#include <iostream>
#include <array>
#include <cstddef>
using namespace std;
//display map. initialize to nullptrs
//reserve
//list reserved seats
//quit

//Error check section + row;
int ROWS = 10;
int COLS = 20;
int displaySeat(char seatingChart[][20], int rows);
int chooseSeat (char seatingChart[][20], int rows);
int alreadyTaken (char seatingChart[][20],int rows);
void showMenu();
int giveUpSeat (char* seatingChart[][20],int rows,char* name[20]);
int errorMessage (int option, char sectionLetter);

int main()
{
int option;
cin >> option;
showMenu();
cout << "Welcome to SMU's amphitheater!" << endl;
char sectionA[10][20];
char sectionB[10][20];
char sectionC[10][20];
char sectionLetter;
while(option != 4){
if (option == 1){
displaySeat(sectionA,10);
displaySeat(sectionB,10);
displaySeat(sectionC,10);
} else
if (option == 2){
cout << "Enter section letter:";
cin >> sectionLetter;
if (sectionLetter = 'a') {chooseSeat(sectionA,10);
}else if(sectionLetter = 'b') {chooseSeat(sectionB,10);
}else if(sectionLetter = 'c') {chooseSeat(sectionC,10);
}else {errorMessage(999,'z');}
} else
if (option == 3){
cout << alreadyTaken(sectionA,10);
cout << alreadyTaken(sectionB,10);
cout << alreadyTaken(sectionC,10);
}
}
return 0;
}
/*
Display a chart for A section with x and o's to show
available seats
*/
int displaySeat(char seatingChart[][20]){
//const char seats[ROWS][COLS];
cout << "Seating Chart : " << endl << endl;
cout << " 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20";
cout << "1" <<endl <<"2" <<endl<<"3"<<endl<<"4"<<endl<<"5"<<endl<<"6"<<endl<<"7"<<endl<<"8"<<endl<<"9"<<endl<<"10"<<endl;
for (int i=0; i< ROWS; i++){
for (int j=0; j<20;j++){
cout << seatingChart[i][j];
}
}
}

/*
Reserving a seat, type in Section, Row, and column.
If row && seat && section choice is taken, cout it is taken
conditions : seating is = nullptr || = available;
else it is taken.
*/
int chooseSeat (char seatingChart[][20], int rows){
bool taken = true;
for (int i=0; i< rows; i++){
for (int j=0; j<20;j++){
if (*seatingChart[][20] == nullptr && *seatingChart[][20] != taken )
{
*seatingChart[i][j] = taken;
cout << "This seat is already taken" << endl;
} else {
*seatingChart[i][j] = available;
int chosenRow;
int chosenCol;
string name;
*seatingChart = new char[chosenRow][chosenCol];
//row #
cout << "Enter row number : " << endl;
cin >> chosenRow;
  
//col #
cout << "Enter column number : " << endl;
cin >> chosenCol;
  
cout << "Enter your name : " << endl;
cin>> name;
  
cout << name << "have reserved" << seatingChart[chosenRow][chosenCol] << endl;
}
}
}
}
int alreadyTaken (char seatingChart[][20],int rows){
//It is taken if it is not null or if there is a name
// in the element (if taken) display 'x' else display 'o'
*seatingChart = new char[rows];
for (int i=0; i< rows; i++){
for (int j=0; j<20;j++){
if (*seatingChart[][20] != nullptr && *seatingChart[][20] != name ){
*seatingChart[i][j] = available;
} else {
*seatingChart[i][j] = taken;
}
}
}
}

void showMenu (){
cout << "Menu: " <<endl << endl;
cout << "1.Display the theatre seating chart." <<endl;
cout << "2.Reserve a seat" <<endl;
cout << "3.List of reserved seats by section" <<endl;
cout << "4.Quit" << endl;
}
int giveUpSeat (char* seatingChart[][20],int rows,char* name[20]){
//if it has a name, remove the name and replace with nullptr.
if (*seatingChart == name){
*seatingChart = nullptr;
} else {
*seatingChart = available;
}
}

int errorMessage (int option, char sectionLetter){
if (option != 1 && option != 2 && option != 3 && option != 4 && sectionLetter!='a' && sectionLetter!='b' && sectionLetter !='c'){
cout << "Oops! This is not one of the options." << endl;
}
}

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