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HTML

              
                <body>

<p>Αυτό το παράδειγμα καλεί μία function με το όνομα toCelsius για την μετατροπή των βαθμών Fahrenheit σε Celsius. <br> Η μεταβλητή fvalue έχει τη τιμή του text field με id 'give' που δίνει ο χρήστης τους Celsius βαθμούς. <br> Η μεταβλητή gvalue περιέχει το αποτέλεσμα της πράξης και εμφανίζεται στη παράγραφο με id demo.</p>
<input type="text" id="give" value="5">
<p id="demo"></p>
<button onclick="toCelsius()">ΔΟΚΙΜΑΣΤΕ</button>
</body>
              
            
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CSS

              
                
              
            
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JS

              
                function toCelsius() {
    var fvalue = document.getElementById("give").value;  
    var gvalue = (5/9) * (fvalue-32);
    document.getElementById("demo").innerHTML = gvalue;
}

              
            
!
999px

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