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Output:
Example 64: To demonstrate the use of sqrt() method
<!DOCTYPE HTML>
<HTML>
<HEAD>
<TITLE>JavaScript Square Root</TITLE>
</HEAD>
<SCRIPT>
function display() {
var sqrtValue = Math.sqrt(25);
alert("Square root of 25: " + sqrtValue);
}
</SCRIPT>
</HEAD>
<BODY>
<INPUT type="button" onclick="display()" value="Find Square Root">
</BODY>
</HTML>
Output:
2.14 JAVASCRIPT EVENTS
The way that JavaScript interacts with HTML is through events that happen whenever a user or browser
modifies a page. A page load is referred to as an event. An event also occurs when a user clicks a button. The
actions of pushing any key, closing a window, resizing a window, etc. are other instances.
JavaScript Part 2 257

