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Jquery not loading in Laravel

I have a problem loading jQuery into laravel app. I tried checking if it's installed in the first place and I get success. Using this:
if (typeof jQuery == "undefined") {
alert("JQuery is not installed");
} else {
alert("JQuery is installed correctly!");
}
But then I tried checking if it's loading with code:
window.onload = function() {
if (window.jQuery) {
// jQuery is loaded
console.log("jQuery has loaded!");
} else {
// jQuery is not loaded
console.log("jQuery has not loaded!");
}
}
I get no response at all. What could be the problem?
This is my scripts in file (last 2 lines):
<script src="assets/bootstrap/js/bootstrap.min.js"></script>
<script src="assets/js/bs-init.js"></script>
<script src="assets/js/4-Col-Small-Slider.js"></script>
<script src="assets/js/A-working-Rating-option-for-Contact-Forms.js"></script>
<script src="assets/js/Add%20an%20upsell.js"></script>
<script src="assets/js/add%20to%20cart%20button.js"></script>
<script src="assets/js/ask%20payment%20method.js"></script>
<script src="assets/js/cheque.js"></script>
<script src="assets/js/currency.js"></script>
<script src="assets/js/easings.js"></script>
<script src="assets/js/flickity%20pkgd.js"></script>
<script src="assets/js/flickity.js"></script>
<script src="assets/js/meals%20sizes.js"></script>
<script src="assets/js/menu.js"></script>
<script src="assets/js/modal.js"></script>
<script src="assets/js/plans.js"></script>
<script src="assets/js/realtime%20typing%20card%20expires.js"></script>
<script src="assets/js/realtime%20typing%20card%20number.js"></script>
<script src="assets/js/realtime%20typing%20cardholder%20cvc.js"></script>
<script src="assets/js/realtime%20typing%20cardholder.js"></script>
<script src="assets/js/realtime%20typing.js"></script>
<script src="assets/js/remove%20product%20from%20cart.js"></script>
<script src="assets/js/section%20click.js"></script>
<script src="assets/js/SlideShow.js"></script>
<script src="assets/js/Swiper-Slider-Card-For-Blog-Or-Product.js"></script>
<script src="assets/js/Swiper-Slider.js"></script>
<script src="assets/js/swiper.js"></script>
<script src="assets/js/swipermin.js"></script>
<script src="assets/js/switches%20on%20add%20a%20meal%20page.js"></script>
<script src="assets/js/theme.js"></script>
<script src="assets/js/time.js"></script>
<script src="assets/js/upsell.js"></script>
<script src="{{ asset('js/app.js') }}"></script>
<script src="assets/js/jquery.min.js"></script>
I'm using Laravel mix, it seems there's problem somewhere in app.js I suppose.
I managed to load jQuery, I get success message, but it still doesn't work. For example:
$(document).ready(function () {
$("#category_image").on("change", function () {
var image = $("#category_image");
var preview = $("#preview-image");
var objectURL = URL.createObjectURL(e.target.files[0]);
preview).css("background-image", 'url('+objectURL+')');
})
});
This code doesn't work, unless I messed something up. If I use plain javascript onchange and I use jQuery id selector it works. Am I doing this function wrong?

Converting HTML div to pdf using jsPDF shows doc.fromHTML is not a function

I am trying convert the html div element to pdf file using jspdf. i have included all js script including form_html.js. still i am getting "TypeError: doc.fromHTML is not a function".
<script type="text/javascript" src="jsPDF-master/jspdf.js"></script>
<script type="text/javascript" src="jsPDF-master/jspdf.plugin.addimage.js"></script>
<script type="text/javascript" src="jsPDF-master/jspdf.plugin.cell.js"></script>
<script type="text/javascript" src="jsPDF-master/jspdf.plugin.ie_below_9_shim.js"></script>
<script type="text/javascript" src="jsPDF-master/jspdf.plugin.javascript.js"></script>
<script type="text/javascript" src="jsPDF-master/jspdf.plugin.from_html.js"></script>
<script type="text/javascript" src="jsPDF-master/libs/FileSaver.js/FileSaver.js"></script>
<script type="text/javascript" src="jsPDF-master/jspdf.plugin.sillysvgrenderer.js"></script>
<script type="text/javascript" src="jsPDF-master/jspdf.plugin.split_text_to_size.js"></script>
<script type="text/javascript" src="jsPDF-master/jspdf.plugin.standard_fonts_metrics.js"></script>
<script type="text/javascript" src="jsPDF-master/jspdf.PLUGINTEMPLATE.js"></script>
<script src="jspdf.debug.js"></script>
<script src="jspdf.plugin.from_html.js"></script>
and javascript is
jQuery(function($) {
$("#button1").click(function(){
var doc = new jsPDF();
var specialElementHandlers = {
'#simple': function (element, renderer) {
return true;
}
};
var source = $('#simple').html();
doc.fromHTML(source, 0.5, 0.5, {
'width': 75,'elementHandlers': specialElementHandlers
});
doc.output("dataurlnewwindow");
});
});
Pls help me in fixing this

i might be wrong because i have not run your code but i notice is you have not included a jquery library into the script tag and you are using a jquery function. Try including Jquery and retry hope that solves your problem..

How can I get the data that is sent from my html file to php and recieve and show the data

I found a program which is sending the data from the form to php file from jquery. But when I have tried to find it, it is displaying nothing. When I am clicking on the Load Data button nothing is coming. Is something wrong in the program ?
main.php
<?php
if( $_REQUEST["name"] )
{
$name = $_REQUEST['name'];
echo "Welcome ". $name;
}
?>
index.html
<html>
<head>
<title>the title</title>
<script type="text/javascript"
src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js/"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function() {
$("#driver").click(function(event){
$.post(
"main.php",
{ name: "Zara" },
function(data) {
$('#stage').html(data);
}
);
});
});
</script>
</head>
<body>
<p>Click on the button to load result.html file:</p>
<div id="stage" style="">
STAGE
</div>
<input type="button" id="driver" value="Load Data" />
</body>
</html>
Please resolve the problem. Thanks in advance

Your <script> tag for loading jQuery has an invalid href attribute.
Remove the ending slash from the address so it looks like this:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
Use your browser's developer tools to find out what's wrong with your clientside script, they're really handy. Hit F12.

try this code:
$(document).ready(function() {
$("#driver").click(function(event){
$.post( "main.php", { name: "Zara"})
.done(function( data ) {
$('#stage').html(data);
});
});
});
for detail see link

Please the version of this file:
<script type="text/javascript"
src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js/"></script>
code:
<html>
<head>
<title>the title</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function() {
alert('hi');
$("#driver").click(function(){
$.post(
"main.php",
{ name: "Zara" },
function(data) {
$('#stage').html(data);
}
);
});
});
</script>
</head>
<body>
<p>Click on the button to load result.html file:</p>
<div id="stage" style="">
STAGE
</div>
<input type="button" id="driver" value="Load Data" />
</body>
</html>

Jquery the toggleSlide,function doesnt work why?

I'm trying to slide the info but it doesn't work. Here is my code:
<div Class="article">
<div id="ebook1">Ebook1</div>
<div id="infoOfEbook1">
Download The Ebook1 From Here.
</div>
</div>
<script type="text/javascript" src="http://code.jquery.com/jquery-2.0.3.js">
$(document).ready(function(){
$("#ebook1").click(function(){
$("#infoOfEbook1").slideToggle("slow");
});
});
</script>

You don't put your code inside the script tag with the src. Change it to this:
<script type="text/javascript" src="http://code.jquery.com/jquery-2.0.3.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#ebook1").click(function(){
$("#infoOfEbook1").slideToggle("slow");
});
});
</script>

Why is simple JQuery dialog/popup not working?

I put it all in one page and it should work and is not working:
<html>
<head> <link href="css_js/styles.css" rel="stylesheet" type="text/css">
<script language="JavaScript1.2" src="css_js/jquery-1.7.1.min.js" type="text/javascript"></script>
<script language="JavaScript1.2" src="css_js/jquery-ui-1.8.17.custom.min.js" type="text/javascript"></script>
<script language="JavaScript1.2" type="text/javascript">
function popup() {
alert('test');
var popup = $('.newpopup');
popup.draggable();
popup.resizable();
popup.html('<p>Where is pancakes house?</p>');
popup.show('fast');
}
$('button').click(popup);
</script>
</head>
<body>
<div class='newpopup'></div>
<button>popup</button>
</body>
</html>
I want to make a simple popup / dialog with Jquery but it is not working at all. What is wrong with it?

Call the function on document.ready
$(document).ready(function(){
$('button').click(function(){
popup();
});
})
OR
$(function(){
$('button').click(function(){
popup();
});
})

You should run your function in jQuery style:
$('button').click(function() {
popup();
return false; //optional
}

Are you sure the src reference is valid when you're including jquery? I've got your code working fine on this jsfiddle using the Google-hosted versions of JQuery and JQuery-ui.