This code display the textarea tag for console.log(abc) which is the ID, but for console.log(text) shows an error. Can anyone explain how value for console.log(abc) is getting executed and not for text class.
I haven't pass any argument to callback function. so how even for console.log(abc) it give an output.
Thank you.
document.querySelector(".text").addEventListener("keydown", () => {
console.log(abc);
//console.log(event);
console.log(text);
});
<!DOCTYPE html>
<html lang="en">
<head>
<title>demo</title>
</head>
<body>
<textarea name="ab" class="text" id="abc" cols="30" rows="10"></textarea>
<script src="script.js"></script>
</body>
</html>
The code segment document.querySelector("#abc") gets the html element with an id of "abc".
The code segment:
.addEventListener("keydown", () => {
console.log(abc);
})
is an event listener that listens for a keydown event and prints the html tag with the id of "abc"
Related
html>
<head>
<title>Landing</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,
initial-scale=1.0">
</head>
<body>
<form name="testForm" action="move.jsp">
<label><h1>Enter the data <h1/></label><br/>
<input type="text" name="DATA"><br/>
<input type="submit">
</form>
<% out.println(DATA) %> <!-- WRONG!! -->
</body>
</html>
Please ignore the action part
I am working on a spring mvc project and I have a problem. What I want is that, when the user clicks submit, we should not leave the page, we should just stay. But the values submitted would be used as a parameter to a function in the same page. Here, let's just say I want to print it, and that is the part that is wrongly entered.
What should I do to accomplish this? Please help
You can use ajax here when your submit button is clicked call this function and then using this call your ajax passed the value from your input to your server and then at your server side perform operation which you needed to do and then the result back to ajax .
Your form :
<form name="testForm" action="move.jsp">
<label><h1>Enter the data <h1/></label><br/>
<input type="text" name="DATA"><br/>
<input type="button" onclick="submit_values()">
<!--^^added this-->
</form>
<div id="result"><!--here data will come back--></div>
Then on click of your button submit_values() function will get called . i.e :
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"> </script>
<script>
function submit_values() {
//get input value
var values = $("input[name='DATA']").val();
console.log(values);
$.ajax({
type: 'POST',
data: {
values: values//passing to server
},
url: "Your_server_url",
success: function(data) {
alert(data);//this will display whatever server will return
$("#result").html(data);//add response back to show
}
});
}
</script>
Then at your server-side do like below :
String data =request.getParameter("values");//get value
String send_back = something(data);//call your function
out.println("DATA BACK"+send_back );//this will go back to ajax
When I create a sgvizler.visualization.Table with Sgvizler 0.6 and the SPARQL query has no results, Sgvizler doesn't draw anything, not even the table header. This may confuse users who may think that the result is still being calculated or that the script has crashed. How can I configure Sgvizler to draw the table header even when the result is empty?
Minimum Working Example
<!doctype html>
<html>
<head>
<meta charset="utf-8"/>
<script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.0/jquery.js"></script>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="http://mgskjaeveland.github.io/sgvizler/v/0.6/sgvizler.js"></script>
<script>
sgvizler
.defaultEndpointURL("https://dbpedia.org/sparql")
.defaultChartFunction("sgvizler.visualization.Table")
.defaultChartWidth(1000);
$(document).ready(function (){ sgvizler.containerDrawAll(); });
</script>
</head>
<body>
<h2>First Table</h2>
<div id="results"
data-sgvizler-query="
select distinct ?class
{
?class rdfs:subClassOf dbo:Animal.
}
">
</div>
<h2>Second Table</h2>
<div id="noresults"
data-sgvizler-query="
select distinct ?class
{
?class rdfs:subClassOf dbo:Unicorn.
}
">
</div>
</body>
</html>
This is a bug in the parser, which looks only at the first row of results to build the JSON accepted by the google.visualization.DataTable object.
The solution would be to rewrite the parser to check the "column headers" of the SPARQL result set.
The parser is here: https://github.com/mgskjaeveland/sgvizler/blob/master/src/parser.js
I want to make a redirection with jQuery mobile right just after the page loads.
Something like this
<?php
... some php stuff here
?>
<html>
<head>
<link rel="stylesheet" href="css/jquery.mobile-1.1.1.min.css" />
<script src="js/jquery-1.7.2.min.js"></script>
<script src="js/jquery.mobile-1.1.1.min.js"></script>
</head>
<script>
$.mobile.changePage("index.php");
</script>
But nothing happens...
Thanks!
Nothing happens because jQueryMobile hasn't done it's magic yet.
Try:
$(document).bind('pageinit', function() {
$.mobile.changePage("index.php");
});
You could also try some of the events listed at http://jquerymobile.com/demos/1.1.1/docs/api/events.html
Edited following comment:
The following works as expected for me:
<html>
<head>
<title>My Page</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.1.1/jquery.mobile-1.1.1.min.css" />
<script src="http://code.jquery.com/jquery-1.7.1.min.js"></script>
<script src="http://code.jquery.com/mobile/1.1.1/jquery.mobile-1.1.1.min.js"></script>
<script>
$(document).bind('pageinit', function() {
$.mobile.changePage("#pageTwo");
});
</script>
</head>
<body>
<div id="firstPageId" data-role="page">
Page One
</div>
<div id="pageTwo" data-role="page">
Page Two
</div>
</body>
</html>
You can use plain ol' JavaScript for this, you don't need jQuery:
window.location = "index.php";
To do it after the page loads, add a $(document).ready() handler:
$(document).ready(function () {
window.location = "index.php";
});
Try, adding your page-id in the script with .live, something like this:
$('#mainpage').live('pageinit', function (event) {
alert("hi");
//$.mobile.changePage("index.php");
});
Here is the full example: http://jsfiddle.net/KyKFE/
On the other hand, you can also use just plain javascript function or php (if .php page) to do the redirection. They are many different ways to do this.
Please try this to end of your page and before </body> tag,
<script>
$(window).load("index.php", function() {
// stuff or not
});
</script>
I hope help you. :)
I am new to jquery mobile, and am having problems getting content I have inserted dymically using pageinit to display on the first time of the form response page. It displays on subsequent refreshes of the page. I also don't want the content to cache.
I need to use querystring values like ?blah=1&blah=2 as I use these in my call to an external json file.
How should I be doing this? If I use rel="external", and setting ajax to false, I have problems with issues on android. So using pageinit in the header, how do I make the dynamically loaded content (in the example, the time in seconds) in the 2nd page display first time round?
I have simplified the problem into test pages below.
Expected behaviour. When you click on the submit button of the form you go through to the 2nd page which should display the no of seconds taken from datetime
Actual behaviour. The seconds/time does not display on the 2nd page until the page is refreshed.
Elsewhere, I have come across the suggestion to put the pageinit code into the div itself, however this has caused the content to cache on android (ie the no of seconds remains the same), so I don't want to do this.
Any ideas on how I should approach this would be much appreciated
Sample code
=======
Page 1 - form
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.0.1/jquery.mobile-1.0.1.min.css" />
<script src="http://code.jquery.com/jquery-1.6.4.min.js"></script>
<script src="http://code.jquery.com/mobile/1.0.1/jquery.mobile-1.0.1.min.js"></script>
<script src="/scripts/myinit.js"></script>
</head>
<body>
<div data-role="page" id="page1" data-add-back-btn="true">
<div data-role="content" data-theme="b">
<form action="page_2.htm" method="GET" id="form1" name="form1">
<input type="hidden" name="seconds" value="">
<div class="ui-block-b"><button type="submit" data-theme="a">Submit</button></div>
</form>
</div>
</div>
</body>
</html>
===
Page 2 form response page
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.0.1/jquery.mobile-1.0.1.min.css" />
<script src="http://code.jquery.com/jquery-1.6.4.min.js"></script>
<script src="http://code.jquery.com/mobile/1.0.1/jquery.mobile-1.0.1.min.js"></script>
<script src="/scripts/myinit.js"></script>
</head>
<body>
<div data-role="page" id="page2" data-add-back-btn="true">
<div id="job" data-role="content">
</div>
</div>
</body>
</html>
===
custom javascript file called /scripts/myinit.js (included in both pages above)
$('#page1').live('pageinit', function(event) {
var seconds = new Date().getTime();
$('input[name=seconds]').val(seconds);
});
$('#page2').live('pageinit', function(event) {
var querystring = location.search.replace( '?', '' ).split( '&' );
var queryObj = {};
for ( var i=0; i<querystring.length; i++ ) {
var name = querystring[i].split('=')[0];
var value = querystring[i].split('=')[1];
queryObj[name] = value;
}
var seconds = queryObj["seconds"];
$('#job').append("seconds=" + seconds);
});
try changing pageinit by pageshow. i had the same problem and it worked for me
Link to the external file like this:
HTML --
I'm a Link
JS --
$(document).delegate('#external-link', 'click', function () {
$.mobile.changePage('/path/to/file.html', { reloadPage : true });
return false;
});
Setting the reloadPage option for the changePage() function will allow the external page to be refreshed rather than loading the cached version. Since the external page will be refreshed, the pageinit code for it will run when it's initialized and your code should function properly.
Documentation: http://jquerymobile.com/demos/1.1.0-rc.1/docs/api/methods.html
add unload event listener this is works
but
<html>
<head>
</head>
<body>
</body>
<script>
function give_show(value){
return function(){
console.log(value);
}
}
var body_element = document.getElementsByTagName('body')[0];
body_element.addEventListener('load',give_show('pong!'),false)
</script>
</html>
The body has already loaded before the event is attached. Try moving the script to the <head> tag and using:
<body onload="give_show('pong!')">