I have created 5 buttons. I'm loading some pages on button click. I want the first button automatically clicked on page load and load it's corresponding html file and the remaining buttons should load html files only on clicking them. Someone help me!!
This is my jquery:
$('a#Home').click(function() {
$("#home").load("x.html");
});
$('a#Menu1').click(function() {
$("#menu1").load("y.html");
});
$('a#Menu2').click(function() {
$("#menu2").load("z.html");
});
$('a#Menu3').click(function() {
$("#menu3").load("searcharray.html");
});
$('a#Menu4').click(function() {
$("#menu4").load("sortarray.html");
});
Just test this code. I think this will help you.
$( document ).ready(function() {
console.log( "ready!" );
$('#btn1').trigger( "click" );
});
function fun1()
{
alert('loaded');
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id="btn1" onclick="fun1()">btn1</button>
<button id="btn2">btn1</button>
<button id="btn3">btn1</button>
<button id="btn4">btn1</button>
trigger the event yourself:
$('a#Home').click(function() {
$("#home").load("x.html");
});
$('a#home').trigger('click');
Theoretical answer
You can trigger any event on any element using the .trigger() method. This will require you to specify which event you want to fire. More information.
It is also possible to trigger a click event just by calling .click() after binding the event handling. The documentation shows us that we can use this function for both purposes.
$( document ).ready() is an interaction that can be used to run code once when the document has been loaded. More info on that can be found here.
Examples
Example #1 (using .trigger())
$( document ).ready(function() {
$('a#Home').trigger('click');
});
Example #2 (using .click())
$( document ).ready(function() {
$('a#Home').click();
});
Assuming the first button is Home then you want run that on document ready by using $(function()
<script>
$(function() {
$('a#Home').click();
});
function loadHome() {
$("#home").load("x.html");
};
</script>
Then update your link to be like:
<a id="Home" onclick="loadHome()">Click Me</a>
You can try this:
<script>
function pageLoad()
{
alert('hello');
}
pageLoad();
</script>
<button id="btn1" onclick="pageLoad()">btn1</button>
Related
I have got a .js file that adds functionality to a menu when the page loads (when document is ready) ... the first three lines of the file are...
( function( $ ) {
$( document ).ready(function () {
$('#cssmenul li.has-sub>a').on('click', function(){
After that there's loads more code that adds colours and other visual effects.
At the moment the function doesn't have a name - it just runs. However if I wanted to call the function from a button how do I name it? If called the function activateMenu I would then have a button like this:
<input type="button" value="Activate" onclick="activateMenu();">
Thanks very much
If you want to reuse the code as activateMenu, then you can group the contents of that code into its own function and reference it inside your .ready()
(function($){
$(document).ready(function(){
activateMenu();
});
})(jQuery);
function activateMenu(){
console.log('test');
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<button onclick="activateMenu()">Test Button</button>
create your function separately and the just pass the reference of it to the ready event, like this,
function doSomething(){
// do whatever you want to do
console.log('doing something')
}
// then
$( document ).ready(doSomething)
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<button onclick="doSomething()">click me</button>
I want to create a back button browser event using jquery. I did this code but it doesnt appear to work
$(document).ready(function() {
$('.back').click(function() {
window.history.back();
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Back
The href="#" will add a new item to history, so window.history.back(); will "return" to the page where the link was clicked. You need to prevent the link from directing to # with this:
$( document ).ready(function() {
$('.back').click(function(e) {
e.preventDefault();
window.history.back();
});
});
you are missing to specify event as function argument, try this one..
$(".back").click(function(event) {
event.preventDefault();
history.back(1);
});
This might solve your problem.
I have made this:
<span class="a">test 1</span><div></div>
Why .b does not activate the alert?
$( ".a" ).click(function() {
$('div').html('<span class="b">test 2</span>');
});
$( ".b" ).click(function() {
alert("Hello");
});
I do not understand how to detect the mutation of the DOM.
since .b is created after the query was done. when you call $(".b") in your script nothing is found, and the click event is not attached to it. You can solve it by attaching the event to the document like so:
$(document).on("click", ".b", function () {
alert("hello");
});
The click() binding you're using is called a "direct" binding which will only attach the handler to elements that already exist. It won't get bound to elements created in the future. To do that, you'll have to create a "delegated" binding by using on().
$('div').on("click", ".b", function () {
alert("hello");
});
The selector runs on execution, meaning that .b was already searched for when the page loaded, rather than after you added the dom.
To demonstrate how selectors run in line, the code works if you define it right after appending the element:
$( ".a" ).click(function() {
$('div').html('<span class="b">test 2</span>');
$( ".b" ).click(function() {
alert("Hello");
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<span class="a">test 1</span><div></div>
However, the correct way of doing this would be to define a parent-based selector. The following is setting a click event to the parent that filters the target for the .b selector.
$( ".a" ).click(function() {
$('div').html('<span class="b">test 2</span>');
});
$(document.body).on("click", ".b", function () {
alert("Hello");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<span class="a">test 1</span><div></div>
I want to trigger a click event on a div. I use the following code but it is not working.
$('#showbanner').trigger('click');
<div id="showbanner">show banner</div>
What is that I am doing wrong? I actually want to show the banner 2 seconds after page is loaded. Before I could add delay event my click event for this div is not firing.
Here is my code example: http://codepen.io/anon/pen/aOzyxo
The issue is because your trigger('click'); call is the first thing in your script; it's called before the event is attached.
You need to move it to the end of the script so that the event handlers are bound when it is called:
Updated Codepen
enter code here
Try this .
$(function () {
$(document).on("click", "#showbanner", function () {
alert('Hola');
});
$("#showbanner").click();
});
show banner
Try this
JS
$('#showbanner').on("click", function() {
alert("test");
});
$('#showbanner').trigger('click');
HTML
<div id="showbanner">show banner</div>
Try this
$('#showbanner').on("click", function() {
alert("test");
});
$('#showbanner').click();
I'm really new to jQuery, and I want this code to show an alert box when the button is pressed.
<script src="https://code.jquery.com/jquery-1.9.1.js"></script>
<script>
$("button").click(function() {
alert("You clicked.");
});
</script>
<button>Button</button>
I try it, and nothing happens when I click the button.
In jQuery when event handlers are added, you need to make sure that the element is already loaded to the dom else jQuery selector will not return the element so the event handler will not get registered.
The solution is to use the dom ready event handler which will get triggered once the initial dom loading is completed meaning all the elements in the pages is loaded into the dom, it is the safest place to add the event handlers.
jQuery(function($){
$("button").click(function() {
alert("You clicked.");
});
})
As #zzzzBov noted below, it is a short cut for using the lengthy document ready handler
jQuery(document).ready(function($){
$("button").click(function() {
alert("You clicked.");
});
})
Right now, when your code executes, the button has not been loaded so it does not attach the click handler to anything, therefore you need to wrap your jQuery code in $(document).ready(function() { ... }); so that there is for sure a DOM element to attach your handler to, so your code becomes:
$(document).ready(function() {
$("button").click(function() {
alert("You clicked.");
});
});
See the documentation on $(document).ready().
Put your code in ready event
$(document).ready(function(){
$("button").click(function() {
alert("You clicked.");
});
});
You're calling jQuery to add the click handler before you're <button> is declared, so jQuery doesn't find it. Either move the <button> to the top of your snippet, or use a DOM ready function to delay your script execution until the DOM is ready to be manipulated.
Like this:
$(document).ready(function() {
$("button").click(function() {
alert("You clicked.");
});
});
You're running that script before the button exists, put it after instead:
<script src="https://code.jquery.com/jquery-1.9.1.js"></script>
<button>Button</button>
<script>
$("button").click(function() {
alert("You clicked.");
});
</script>