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TVTC.gov.sa Chapter 4: JavaScript Basics Quiz
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TVTC.gov.sa Chapter 4: JavaScript Basics Quiz

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Questions and Answers

What is the purpose of the 'swapText' function defined in the given JavaScript code snippet?

  • To change the text of an element with id 'output' to 'Bye' (correct)
  • To create a new text element with the content 'Bye'
  • To trigger an event when 'Hello' is clicked
  • To swap the positions of two elements on the webpage
  • What does the following JavaScript statement achieve: 'var text = document.getElementById("output");'?

  • It creates a new HTML element with id 'output'
  • It retrieves the element with id 'output' from the DOM (correct)
  • It hides the element with id 'output'
  • It sets the text content of the element with id 'output' to a variable named 'text'
  • In JavaScript, what does the 'innerHTML' property do when used with an element?

  • Adds a new child element inside the selected element
  • Changes the background color of an element
  • Modifies the CSS styling of an element
  • Sets or returns the HTML content (inner HTML) of an element (correct)
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