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I have a working JavaScript function declared in the head of an HTML page. I know how to create a button and call the function when the user clicks the button. I want to call it myself some where on the page:
myfunction();
How do I do it?
215
How to call a function in JavaScript. Calling a function (aka method) in JavaScript is similar to any other programming language that uses a C-like syntax. Simply call the function by name, then pass in any required parameters in a comma delimited list enclosed in parenthesis.
JavaScript in body: A JavaScript function is placed inside the body section of an HTML page and the function is invoked when a button is clicked. External JavaScript: JavaScript can also be used as external files. JavaScript files have file extension .
You can call a function inside an object by declaring the function as a property on the object and invoking it, e.g. obj. sum(2, 2) . An object's property can point to a function, just like it can point to a string, number or other values. Copied!
You can call it like that:
<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript">
var person = { name: 'Joe Blow' };
function myfunction() {
document.write(person.name);
}
</script>
</head>
<body>
<script type="text/javascript">
myfunction();
</script>
</body>
</html>
The result should be page with the only content: Joe Blow
Look here: http://jsfiddle.net/HWreP/
Best regards!
166
I'm not sure what you mean by "myself".
Any JavaScript function can be called by an event, but you must have some sort of event to trigger it.
e.g. On page load:
<body onload="myfunction();">
Or on mouseover:
<table onmouseover="myfunction();">
As a result the first question is, "What do you want to do to cause the function to execute?"
After you determine that it will be much easier to give you a direct answer.
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