consider the below given two HTML pages
parent.html
<!DOCTYPE html>
<html>
<body>
<button id='parent' onclick="test()">Click Me</button>
<div class='test-ab' id="load"></div>
</body>
<script>
function test()
{
//need to call child function or button
}
$(function(){
$('#load').html('<object id="webloader" data="child.html"/>');
});
</script>
</html>
child.html
<!DOCTYPE html>
<html>
<body>
<button id='child' onclick="helloworld()">Click Me</button>
</body>
<script>
function helloworld()
{
alert("hello world");
}
</script>
</html>
there are two defined HTML pages defined, is there any way to call the child.html function (eg here:-helloworld()) from parent.html
You could try the postMessage mechanism
Regards,
Vincent
You can try this:
let child_element = $("#parent").find(".load");
Related
I am trying to create an alert function using the getElementById and it is not working. This is a very simple button i am trying to create but obviously its not simple for a noob like me. Thank you for all your help in advance. This is what i currently have:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>alert</title>
</head>
<body>
<button onclick= "click()" style="color:green;" >click</button>
<script>
function click() {
document.getElementById("alerting").innerHTML = "I am an alert";
}
</script>
</body>
</html>
You need to add an element with id="alerting" where your text will appear. Otherwise document.getElementById("alerting") will return null and calling innerHTML on it will throw error.
<body>
<button onclick= "myFunction()" style="font-size:25px;" >click</button>
<p id="alerting">element with alerting id. value will change here</p>
<script>
function myFunction() {
document.getElementById("alerting").innerHTML = "Hello World";
}
</script>
</body>
You dont have any html elements with id="alerting" into which you can set the innerHTML.
If you want a popup alert instead of doing the innerHTML thing... just do:
alert("I am an alert");
Also of note... some browsers wont like functions named: "click".
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>alert</title>
</head>
<body>
<button onclick="someFunction()" style="color:green;" >Click Me</button>
<script>
function someFunction()
{
alert("I am an alert");
}
</script>
</body>
</html>
<!DOCTYPE html>
<html>
<body>
<button onclick="myFunction(demox)">Click me</button>
<p id="demo"></p>
<p id="demox"></p>
<script>
function myFunction(cat) {
var dog = document.getElementById( cat);
dog.innerHTML = "Hello World";
}
</script>
</body>
</html>
I am trying to pass an id value of "demox" to a js function to display some text with an onclick event, but it doesn't seem to work. what is the problem here?
You can find script modified which solve your issue here.
https://jsbin.com/yitovikete/edit?html,output
Generally, I would suggest you to add <script> tag within the header of your HTML page like this:
https://jsbin.com/yitovikete/1/edit?html,output
This is good when you need to do something while the body is loading, or want to maybe make some ajax requests.
<!DOCTYPE html>
<html>
<body>
<button onclick="myFunction('demox')">Click me</button>
<p id="demo"></p>
<p id="demox"></p>
<script>
function myFunction(cat) {
var dog = document.getElementById( cat);
dog.innerHTML = "Hello World";
}
</script>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<script>
//if i put window.location= "index.php" here not inside js function it worked but I need it to be inside a function
function newLoad() {
window.location= "index.php"
}
</script>
</head>
<body>
<input type="button" value="press here" onclick="newLoad()">
</body>
</html>
any Ideas how can I make it work inside the javascript function ?
Your code works. Howether, you don't need to use javascript.
<a href="index.php">
<button>press here</button>
</a>
Consider the HTML :
<html>
<head>
Something...
</head>
<body>
<script>
$('#btnviewdetails').text('Save').button("refresh");
</script>
<button id='btnviewdetails' type='button'>SET</button>
</body>
</html>
When I hit the button , the JS code is not invoked . What am I doing wrong ?
Thanks
You need to bind an event handler on the button. The function will be invoked when the button is pressed.
$('#btnviewdetails').bind('click', function() {
$(this).text('Save');
});
Complete code :
<html>
<head>
<script src="jquery-2.1.0.min.js"></script>
Something...
</head>
<body>
<button id='btnviewdetails' type='button'>SET</button>
<script>
$('#btnviewdetails').bind('click', function() {
$(this).text('Save');
});
</script>
</body>
</html>
I am using an iFrame in my application. Let me give an example here.
I have main page as
<html>
<head>
<script src='jquery.js'></script>
<script>
function TestFunction()
{
var FirstName = $("#first_name").val();
alert(FirstName);
}
</script>
<head>
<body>
Enter First Name: <input type='text' size='20' id='first_name'><br />
<input type='button' value='Cilck' onclick='TestFunction();'><br />
<iframe id='test_iframe' src='test_iframe.htm' height='200' width='200'>
</iframe>
</body>
</html>
...and this works fine with alerting whatever is entered in textbox
But is it possible to invoke the same function in iframe that will alert the value present in textbox of the parent page?
Suppose test_iframe.htm code is like this
<html>
<head>
<script src='jquery.js'></script>
<script>
function IframeFunction()
{
TestFunction(); // I know this wont work.. just an example
}
</script>
<head>
<body>
<input type='button' value='Click' onclick='IframeFunction();'>
</body>
</html>
Can this be done ?
I believe this can be done with 'parent'
function IframeFunction()
{
parent.TestFunction();
}
<html>
<head>
<script src='jquery.js'></script>
<script>
function IframeFunction()
{
parent.TestFunction(); // or top.TestFunction()
}
</script>
<head>
<body>
<input type='button' value='Click' onclick='IframeFunction();'>
</body>
</html>
<a onclick="parent.abc();" href="#" >Call Me </a>
See Window.Parent
Returns a reference to the parent of the current window or subframe.
If a window does not have a parent, its parent property is a reference to itself.
When a window is loaded in an , , or , its parent is the window with the element embedding the window.
This answer is taken from stackoverflow