To make your images and text fit the window, you can use CSS to adjust their size and responsiveness.

For images, you can use the max-width property to ensure they don't exceed the width of the window. This will automatically scale down the images if they are too large. Here's an example:

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img {
  max-width: 100%;
  height: auto;
}

For text, you can use the width property to set its maximum width. This will make the text wrap to the next line if it exceeds the specified width. Here's an example:

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p {
  width: 100%;
}

By using these CSS properties, your images and text should adjust and fit the window regardless of its size.

Here's an example of a JavaScript popup using the alert() function:

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alert("Hello there! This is a popup window.")

This will display a simple popup window with the message "Hello there! This is a popup window." when the code is executed.

window.location.search returns the query string from the current URL of the web page. The query string contains data to be passed to a web server for further processing of a requested resource.

URLSearchParams is a built-in JavaScript class that provides an easy way to parse and access the parameters from a query string.

Therefore, URLSearchParams(window.location.search) creates a new URLSearchParams object with the query string of the current URL. This object can be used to access and manipulate the parameters in the query string.

Example:

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// URL: https://example.com/?name=John&age=30

const params = new URLSearchParams(window.location.search);

console.log(params.get('name')); // Output: "John"
console.log(params.get('age')); // Output: "30"

In this example, window.location.search returns "?name=John&age=30", which is passed as an argument to URLSearchParams to create a new object params. The get method of params is then used to access the values of the "name" and "age" parameters, which outputs "John" and "30", respectively.

To display an alert message in JavaScript, you can use the alert() function. Here's an example below:

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alert("Hello World!");

When you run this code, a pop-up window will appear with the message "Hello World!".

Note: This is a basic example and there are many ways to display messages or alerts depending on your use case.

Python code:

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import tkinter as tk

window = tk.Tk()
window.mainloop()

This code uses the tkinter module of Python standard library to create a simple empty window. The Tk() method creates a new window instance and the mainloop() method runs the window until it is closed by the user.

To make a link open in a new window in HTML, you need to use the target attribute with the value "_blank" in the anchor tag. Here's an example:

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<a href="https://www.google.com" target="_blank">Click Here</a>

In the example above, clicking the link will open Google in a new window or tab depending on the user's browser settings.

HTML

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<!-- Button to open the modal -->
<button id="myBtn">Open Modal</button>

<!-- The Modal -->
<div id="myModal" class="modal">
  <!-- Modal content -->
  <div class="modal-content">
    <span class="close">&times;</span>
    <p>Modal content goes here.</p>
  </div>
</div>

CSS

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/* Modal Background */
.modal {
  display: none; /* Hidden by default */
  position: fixed; /* Stay in place */
  z-index: 1; /* Sit on top */
  left: 0;
  top: 0;
  width: 100%; /* Full width */
  height: 100%; /* Full height */
  overflow: auto; /* Enable scroll if needed */
  background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}

/* Modal Content/Box */
.modal-content {
  background-color: #fefefe;
  margin: 15% auto; /* 15% from the top and centered */
  padding: 20px;
  border: 1px solid #888;
  width: 80%; /* Could be more or less, depending on screen size */
}

/* Close Button */
.close {
  color: #aaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: black;
  text-decoration: none;
  cursor: pointer;
}

JavaScript

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// Get the modal
var modal = document.getElementById("myModal");

// Get the button that opens the modal
var btn = document.getElementById("myBtn");

// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];

// When the user clicks on the button, open the modal
btn.onclick = function() {
  modal.style.display = "block";
}

// When the user clicks on <span> (x), close the modal
span.onclick = function() {
  modal.style.display = "none";
}

// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
  if (event.target == modal) {
    modal.style.display = "none";
  }
}

To make an image fit the browser window while changing, you can use CSS to set the image's maximum width to 100% and height to auto. This will ensure that the image resizes dynamically as the browser window size changes. Here's an example in CSS:

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img {
  max-width: 100%;
  height: auto;
}

You can add this CSS to an external stylesheet or include it in a <style> tag in the head of your HTML document.

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import React, { useState, useEffect } from "react";

function App() {
  const [showButton, setShowButton] = useState(true);

  useEffect(() => {
    const handleResize = () => {
      if (window.innerWidth < 768) {
        setShowButton(false);
      } else {
        setShowButton(true);
      }
    };

    window.addEventListener("resize", handleResize);
    return () => window.removeEventListener("resize", handleResize);
  }, []);

  return (
    <div>
      {showButton && <button>Click me!</button>}
    </div>
  );
}

This code snippet uses the useState hook to create a boolean state variable showButton which controls whether or not the button is displayed.

The useEffect hook is used to add a listener for the resize event on the window object. Whenever the window is resized, the handleResize function is called which checks the window width and sets the showButton state accordingly.

The return function inside the useEffect hook is used to remove the event listener when the component unmounts, and prevent memory leaks.

Finally, the showButton state is used to conditionally render the button. The button is only displayed if showButton is true.

When you close the web terminal window/tab, the current terminal session will be terminated and any running processes within that terminal session will be interrupted. This means that if you were running a program or a script, it will stop running as soon as you close the terminal session. When you open the web terminal again, you will need to start a new terminal session.

To make a nav bar menu show on scrolling upward and disappear on scrolling downward, you can use JavaScript and CSS.

First, you need to add an event listener to detect when the user scrolls on the page. You can use the window.addEventListener function for this:

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window.addEventListener('scroll', function() {
  // code to be executed when user scrolls
});

Inside the function, you can check the window.scrollY property to see how far the user has scrolled from the top of the page. If the user has scrolled up (i.e. window.scrollY is less than the previous scroll position), you can add a CSS class to show the nav bar. If the user has scrolled down, you can remove the CSS class to hide the nav bar.

Here's an example of how you can achieve this:

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// keep track of previous scroll position
let prevScrollPos = window.pageYOffset;

window.addEventListener('scroll', function() {
  // current scroll position
  const currentScrollPos = window.pageYOffset;

  if (prevScrollPos > currentScrollPos) {
    // user has scrolled up
    document.querySelector('.navbar').classList.add('show');
  } else {
    // user has scrolled down
    document.querySelector('.navbar').classList.remove('show');
  }

  // update previous scroll position
  prevScrollPos = currentScrollPos;
});

In the example above, we add a .show class to the .navbar element when the user scrolls up, and remove it when the user scrolls down. You can define the .show class in your CSS to style the nav bar however you want.

Note that this is just one way to achieve this effect, and there are many other ways to do it depending on your specific needs.

The main difference between alert() and console.log() in JavaScript is that alert() is a method of the window object and console.log() is a method of the console object.

alert() function displays a message box with a specified message and an OK button. It halts the further execution of the code until the user presses the OK button.

console.log() function is used for printing some output to the console. It does not block the execution of further code and does not require user interaction.

Example:

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alert('Hello World!');
console.log('Hello World!');

HTML:

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<div id="modalWindow" style="display: none;">
  <div>
    <div>
      <p>Modal content here.</p>
    </div>
    <div>
      <input type="button" value="Close" onclick="hideModal()" />
    </div>
  </div>
</div>

CSS:

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#modalWindow {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  margin: auto;
  padding: 10px;
  width: 500px;
  font-family: arial;
  font-size: 14px;
  text-align: center;
}

JavaScript:

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// reads the DOM element
let modalWindow = document.querySelector('#modalWindow');

// shows the modal window
function showModal() {
  modalWindow.style.display = 'block';
}

// hides the modal window
function hideModal() {
  modalWindow.style.display = 'none';
}

You can use a media query in CSS to adjust the nav bar's display when the window size changed. For example, if you want to set a smaller size limit at 900px, you can write the following code block:

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@media (max-width: 900px) {
  .nav-bar {
    flex-basis: auto;
    flex-wrap: wrap;
  }
}

This will make the nav-bar responsive when the window size is smaller than 900px. You can find more information about media queries here.

You can stop a page from changing if a user cancels a prompt using the preventDefault() method. This is usually done in JavaScript using an onbeforeunload event attached to the window object. For example:

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window.onbeforeunload = function() {
  return "You cancelled the prompt";
};

Additionally, if you need to use a prompt to capture a value before a page unloads, you can use the prompt() method, which returns null if the user cancels the prompt. For example:

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var value = prompt('Please enter a value before the page unloads');

if (value !== null) { 
  // do something with the value
}

The alert() method of the window object in JavaScript displays an alert dialog with a message and an OK button. It has the following properties:

• message: A string containing the text to display in the dialog.
• modal: (optional) A boolean value indicating whether the alert dialog should be modal (true) or not (false).
• button: (optional) A string indicating what text should be displayed on the button (default is "OK").

In HTML, you can create a title with the <title> tag. For example:

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<title>My Awesome Page</title>

The text inside the <title> element will appear in the title of your web page, which will be displayed in the top of the browser window. For more information, see the MDN article Writing the document's title with the .

In HTML, you can add an target attribute to an a element. The target attribute specifies where to open the linked document. To open the linked document in a new window, use _blank as the target value. For example, to open a link in a new window:

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<a href="https://example.com" target="_blank">Link text</a>

Learn more about the target attribute on the Mozilla Developer Network website.

To select text in JavaScript, you can use the window.getSelection() method. This will create a Selection object which you can then use to set the start and end of the selection and make other modifications. A demo can be found here.

In JavaScript, a document is an object that gives access to and manipulates the currently loaded HTML document. It is a part of the window global object, which represents the window of the current web page. A document object is generated by the browser. It is the root node of the document and it provides an interface for manipulation of the document structure like node trees and their contents. The document object also provides access to stylesheet information, such as style rules and linking elements.

You can use the Split Editor feature in VS Code to view two different parts of your document side-by-side. To use this feature, click the Split Editor button located in the upper right corner of the window next to the Search icon. You can also use keyboard shortcuts to quickly split the editor. On Windows you can use Ctrl+\ and on Mac you can use Cmd+\. Once the editor is split, you can resize the two sides of the editor by clicking and dragging the divider in the middle to adjust them to the desired size. Additionally, you can right-click on any editor tab and select the 'move to other view' option to move specific files to either side of the screen. More information is available in the VS Code documentation.