Please check if this code is correct for a client-side Node.js document editor const url = "http://localhost:3000/POST";   let undoStack = []; let redoStack = [];   function formatText(command) {     document.execCommand(command, false, null); }   function changeColor() {     const color = prompt("Enter text color code:");     document.execCommand("foreColor", false, color); }   function changeFont() {     const font = prompt("Enter font:");     document.execCommand("fontName", false, font); } function changeFontSize() {     const size = prompt("Enter font size:");     document.execCommand("fontSize", false, size); }   function toUpperCase() {     const selectedText = window.getSelection().toString();     document.execCommand("insertText", false, selectedText.toUpperCase()); }   function toLowerCase() {     const selectedText = window.getSelection().toString();     document.execCommand("insertText", false, selectedText.toLowerCase()); }   function increaseImageSize() {     const selectedImage = document.querySelector('img.resizable');     if (selectedImage) {         const currentWidth = selectedImage.width;         selectedImage.style.width = (currentWidth * 1.2) + 'px';     } } function printDocument() {     const buttons = document.querySelectorAll("button");     buttons.forEach(button => {         button.style.display = "none";     });       const editorContent = document.getElementById("editor").innerHTML;       const printWindow = window.open("", "", "width=600,height=600");       printWindow.document.write("<html><head><title>Print</title><style>@media print { button { display: none; } }</style></head><body>");     printWindow.document.write(editorContent);     printWindow.document.write("</body></html>");     printWindow.document.close();       printWindow.print();       buttons.forEach(button => {         button.style.display = "";     }); }   function undo() {     if (undoStack.length > 0) {         redoStack.push(document.getElementById("editor").innerHTML);         document.getElementById("editor").innerHTML = undoStack.pop();     } }   function redo() {     if (redoStack.length > 0) {         undoStack.push(document.getElementById("editor").innerHTML);         document.getElementById("editor").innerHTML = redoStack.pop();     } } function textAlign(align) {     document.execCommand('justify' + align); } function toggleSettings() {     const settingsBar = document.getElementById("settingsBar");     settingsBar.style.right = settingsBar.style.right === "0px" ? "-290px" : "0px";   }     function toggleMode() {     document.body.classList.toggle("light-mode");     document.body.classList.toggle("dark-mode");   }     document.addEventListener("DOMContentLoaded", function() {     const settingsIcon = document.getElementById("settingsIcon");       if (settingsIcon) {       settingsIcon.addEventListener("click", function() {         toggleSettings();       });     } else {       console.error("Settings icon not found.");     }   });   document.addEventListener("DOMContentLoaded", function() {     const popupBox = document.getElementById("popupBox");     const closePopup = document.getElementById("closePopup");       if (popupBox && closePopup) {         popupBox.style.display = "block";         closePopup.addEventListener("click", function() {             popupBox.style.display = "none";         });     } else {         console.error("Popup elements not found.");     } });

Np Ms Office 365/Excel 2016 I Ntermed
1st Edition
ISBN:9781337508841
Author:Carey
Publisher:Carey
Chapter8: Working With Advanced Functions
Section: Chapter Questions
Problem 4.4CP
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Question

Please check if this code is correct for a client-side Node.js document editor

const url = "http://localhost:3000/POST";

 

let undoStack = [];

let redoStack = [];

 

function formatText(command) {

    document.execCommand(command, false, null);

}

 

function changeColor() {

    const color = prompt("Enter text color code:");

    document.execCommand("foreColor", false, color);

}

 

function changeFont() {

    const font = prompt("Enter font:");

    document.execCommand("fontName", false, font);

}

function changeFontSize() {

    const size = prompt("Enter font size:");

    document.execCommand("fontSize", false, size);

}

 

function toUpperCase() {

    const selectedText = window.getSelection().toString();

    document.execCommand("insertText", false, selectedText.toUpperCase());

}

 

function toLowerCase() {

    const selectedText = window.getSelection().toString();

    document.execCommand("insertText", false, selectedText.toLowerCase());

}

 

function increaseImageSize() {

    const selectedImage = document.querySelector('img.resizable');

    if (selectedImage) {

        const currentWidth = selectedImage.width;

        selectedImage.style.width = (currentWidth * 1.2) + 'px';

    }

}

function printDocument() {

    const buttons = document.querySelectorAll("button");

    buttons.forEach(button => {

        button.style.display = "none";

    });

 

    const editorContent = document.getElementById("editor").innerHTML;

 

    const printWindow = window.open("", "", "width=600,height=600");

 

    printWindow.document.write("<html><head><title>Print</title><style>@media print { button { display: none; } }</style></head><body>");

    printWindow.document.write(editorContent);

    printWindow.document.write("</body></html>");

    printWindow.document.close();

 

    printWindow.print();

 

    buttons.forEach(button => {

        button.style.display = "";

    });

}

 

function undo() {

    if (undoStack.length > 0) {

        redoStack.push(document.getElementById("editor").innerHTML);

        document.getElementById("editor").innerHTML = undoStack.pop();

    }

}

 

function redo() {

    if (redoStack.length > 0) {

        undoStack.push(document.getElementById("editor").innerHTML);

        document.getElementById("editor").innerHTML = redoStack.pop();

    }

}

function textAlign(align) {

    document.execCommand('justify' + align);

}

function toggleSettings() {

    const settingsBar = document.getElementById("settingsBar");

    settingsBar.style.right = settingsBar.style.right === "0px" ? "-290px" : "0px";

  }

 

  function toggleMode() {

    document.body.classList.toggle("light-mode");

    document.body.classList.toggle("dark-mode");

  }

 

  document.addEventListener("DOMContentLoaded", function() {

    const settingsIcon = document.getElementById("settingsIcon");

 

    if (settingsIcon) {

      settingsIcon.addEventListener("click", function() {

        toggleSettings();

      });

    } else {

      console.error("Settings icon not found.");

    }

  });

 

document.addEventListener("DOMContentLoaded", function() {

    const popupBox = document.getElementById("popupBox");

    const closePopup = document.getElementById("closePopup");

 

    if (popupBox && closePopup) {

        popupBox.style.display = "block";

        closePopup.addEventListener("click", function() {

            popupBox.style.display = "none";

        });

    } else {

        console.error("Popup elements not found.");

    }

});

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