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Web Technologies - JAVASCRIPT

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Lesson Description


Lession - #195 Javascript Introduction


javascript information

What JavaScript can do/javascript uses?

  • Javascript can change html content
  • Can change attribute value
  • Can change html style
  • Can hide html element
  • Can show html element

    Let's see an example to change html element

    
    
    <!DOCTYPE html>
    <html>
    <body>
    
    <h2>What Can JavaScript Do?</h2>
    
    <p id="demo">JavaScript can change HTML content.</p>
    
    <button type="button" onclick='document.getElementById("demo">
    .innerHTML = "Hello JavaScript!"'>Click Me!</button> </body> </html>

    Output:

    Before change:

    After change:

    Try it here

    Let's see another example to show html element

    
    
    <!DOCTYPE html>
    <html>
    <body>
    
    <h2>What Can JavaScript Do?</h2>
    
    <p id="demo">JavaScript can change HTML content.</p>
    
    <button type="button" onclick='document.getElementById("demo">
    .innerHTML = "Hello JavaScript!"'>Click Me!</button> </body> </html>

    Output:

    Before change:

    After change:

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