This JavaScript code is not working in an HTML5 application - javascript

I am trying to make a simple application in HTML5 with JavaScript. It's supposed to play a random sound, when you push the button.
It works fine, when uploaded to a website, but it doesen't work on my smartphone.
<!doctype html>
<html>
<head>
<script type="text/javascript" src="jquery.min.js"></script>
<script>
function playSounds() {
var sounds = new Array(
"musik/shut the f**k up.mp3",
"musik/My gun's bigger than yours!.mp3"
);
var index = Math.floor(Math.random() * (sounds.length));
$("#element").html("<embed src=\"" + sounds[index] + "\" hidden=\"true\" autostart=\"false\" />");
}
</script>
<title></title>
<meta charset="utf-8">
</head>
<body= "javascript:playSounds()">
<button onClick="playSounds()">
LAUGH</button>
<div id="element">
</div>
</body>
</html>
I copied the content in file jquery.min.js from a site and linked it directly in the application to the mainpage, where the sound needs to play.
The source is here:
http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js
I tried debugging the JavaScript code, but I can't seem to find the issue.
How do I solve this?

Mobile devices in general do not support <embed>.
Your use of <embed> shows you have an imperfect understanding of what an "HTML5 app" is. Such an app would use <audio> and check canPlayType("audio/mpeg") to see if the browser supports MP3 playback.

Related

<script> and JavaScript not working in HTML file for all browsers after XMLHTTPREQUEST

Hello I am new to JavaScript. I have looked through other posts but I cannot resolve my issue.
Earlier I was attempting to play around with the following script found here (How to read text file in JavaScript).
I got it working successfully SEVERAL times:
<!DOCTYPE html>
<html>
<head><meta charset="utf-8" />
<title>Read File (via AJAX)</title>
<script type="text/javascript">
var reader = new XMLHttpRequest() || new ActiveXObject('MSXML2.XMLHTTP');
function loadFile() {
reader.open('get', 'test.txt', true);
reader.onreadystatechange = displayContents;
reader.send(null);
}
function displayContents() {
if(reader.readyState==4) {
var el = document.getElementById('main');
el.innerHTML = reader.responseText;
}
}
</script>
</head>
<body>
<div id="container">
<input type="button" value="test.txt" onclick="loadFile()" />
<div id="main">
</div>
</div>
</body>
</html>
While testing this script, all of a sudden it stopped working! I have assured that my content blockers are disabled and javascript is enabled on my web browsers. I am not sure if I locked up my web browsers ability to use javascript while using this XMLHTTPREQUEST or possibly overloaded it. I even tried inserting a reader.abort() function to possibly close the request if it was still open somehow. I tried inserting alert() functions to troubleshoot that did not work. I tried restarting my computer that did not work. I am using a MAC and have tried the latest versions of Firefox, Chrome, and Safari which all do not work with javascript now.
It is so bad that I CAN'T even get this simple javascript example to work.
<!DOCTYPE html>
<html>
<head>
<title>Test</title>
<script type=“text/javascript”>
document.write(“<h1>This is a test</h1>”);
</script>
</head>
<body>
</body>
</html>
PLEASE HELP! I don't know what I did or how to fix the issue.
Above script works only if you're loading the text file from a server. Make sure the file is located in the same place as your html file on the server and load the page with your server address. Most likely thing you're doing wrong is you're trying to access client's file. It doesn't work because that will be HUGE security breach, only the client can send you a file to read (If that is your intended purpose, then I advise you to use FileReader, example code can be found here).
About your second script, you're using “ instead of ".

Creating Batch Scripts with JavaScript

I'm trying to make a simple page with JS which generates Batch Scrips based on user input.
This is the prototype code and works fine with Chrome, but clicking on link with Firefox downloads the file as .txt (e.g.: file.bat.txt) and IE is completey unresponsive to the link
Where am i going wrong?
Any issues with "data:text/plain;base64,"?
<!DOCTYPE html>
<html>
<head>
<title>Demo</title>
</head>
<body>
click here
<script>
var bat_source = "#echo off\necho Hello world\npause";
document.querySelector("a").href = 'data:text/plain;base64,' + btoa(bat_source);
</script>
</body>
</html>

Accessing jQuery within a JavaScript namespace / module pattern [duplicate]

So classic problem, but having a horrible time on finding the actual cause. Typically when I see this error it's because the jQuery reference is after code requiring it, or back jQuery link, or jQuery conflict, etc... so far none of those appear to be the case. Unfortunately seeking out the solution to this problem has lead me to post after post of such cases. I'm sure my problem here is equally as simple, but over an hour of hunting, still no luck...
Edit: Additional information...
The solution file (which I've recreated multiple times trying to figure this out. Is a JavaScript Windows Store Blank App template and I'm doing this in Visual studio. The only references files is Windows Library for javascript 1.0, I have tried deleting this to test as well.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>HTML5 Canvas Template</title>
<style>
/* styles here */
</style>
</head>
<body>
<canvas id="myCanvas" width="500" height="500">
<p>Canvas not supported.</p>
</canvas>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
var canvas = $("#myCanvas").get(0);
var context = canvas.getContext("2d");
function renderContent()
{
// we'll do our drawing here...
}
renderContent();
});
</script>
</body>
</html>
It's states that JQuery referred URL is not correct
Try this:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
I tried everything listed above and nothing seems to work until I put this string
<script src="../scripts/jquery-2.2.3.min.js" type="text/javascript"></script>
in the head section of the HTML file. So here's how it looks:
<!DOCTYPE html>
<html>
<head>
<!-- jQuery Reference -->
<script src="../scripts/jquery-2.2.3.min.js" type="text/javascript"></script>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<title>some title</title>
</head>
<body>
...
And the js file is located at a level below in the folder 'scripts'.
Finally, the error is gone and what a relief!
In my case, the problem was that I was rendering my page over https but I was trying to request the JQuery file over http, which is blocked by many browsers for security reasons.
My fix was to change this...
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
...to this...
<script src="//code.jquery.com/jquery-1.9.1.min.js"></script>
This causes the browser to download JQuery using the same protocol (http or https) as the page being rendered.
Some of my clients had this problem, because apparently they blocked loading Javascript from 3rd party sites. So now I always use the following code to include jQuery:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script>
window.jQuery ||
document.write('<script type="text/javascript" src="/js/jquery-1.9.1.min.js">\x3C/script>')
</script>
This makes sure, that even if my client blocks loading the Javascript file from the CDN domain, the client still downloads the file from my own server, which is not blocked by the browser.
Anover variant, in my case - I was forced to use proxy. So - IE11--> InternetOptions --> Connections-->LANSettings-Proxy Server--> UseProxyServer - should be checked.
Also check awailability of jQUery script source, my worked variant in VS2012 - -just like in top example
I was getting this same error code:
(Error: 'generateText' is undefined)
...on the code
var bodyText=["The....now."]
I discovered on my text-editor(Notepad++), when typing many lines of text in the directly above the variable bodyText, if I didn't hit return carriage (enter==>WordWrap is off) just kept typing w/o return carriage and let the editor adjust text it worked?
Must be in the settings of Notepad++??

JavaScript runtime error: '$' is undefined

So classic problem, but having a horrible time on finding the actual cause. Typically when I see this error it's because the jQuery reference is after code requiring it, or back jQuery link, or jQuery conflict, etc... so far none of those appear to be the case. Unfortunately seeking out the solution to this problem has lead me to post after post of such cases. I'm sure my problem here is equally as simple, but over an hour of hunting, still no luck...
Edit: Additional information...
The solution file (which I've recreated multiple times trying to figure this out. Is a JavaScript Windows Store Blank App template and I'm doing this in Visual studio. The only references files is Windows Library for javascript 1.0, I have tried deleting this to test as well.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>HTML5 Canvas Template</title>
<style>
/* styles here */
</style>
</head>
<body>
<canvas id="myCanvas" width="500" height="500">
<p>Canvas not supported.</p>
</canvas>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
var canvas = $("#myCanvas").get(0);
var context = canvas.getContext("2d");
function renderContent()
{
// we'll do our drawing here...
}
renderContent();
});
</script>
</body>
</html>
It's states that JQuery referred URL is not correct
Try this:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
I tried everything listed above and nothing seems to work until I put this string
<script src="../scripts/jquery-2.2.3.min.js" type="text/javascript"></script>
in the head section of the HTML file. So here's how it looks:
<!DOCTYPE html>
<html>
<head>
<!-- jQuery Reference -->
<script src="../scripts/jquery-2.2.3.min.js" type="text/javascript"></script>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<title>some title</title>
</head>
<body>
...
And the js file is located at a level below in the folder 'scripts'.
Finally, the error is gone and what a relief!
In my case, the problem was that I was rendering my page over https but I was trying to request the JQuery file over http, which is blocked by many browsers for security reasons.
My fix was to change this...
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
...to this...
<script src="//code.jquery.com/jquery-1.9.1.min.js"></script>
This causes the browser to download JQuery using the same protocol (http or https) as the page being rendered.
Some of my clients had this problem, because apparently they blocked loading Javascript from 3rd party sites. So now I always use the following code to include jQuery:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script>
window.jQuery ||
document.write('<script type="text/javascript" src="/js/jquery-1.9.1.min.js">\x3C/script>')
</script>
This makes sure, that even if my client blocks loading the Javascript file from the CDN domain, the client still downloads the file from my own server, which is not blocked by the browser.
Anover variant, in my case - I was forced to use proxy. So - IE11--> InternetOptions --> Connections-->LANSettings-Proxy Server--> UseProxyServer - should be checked.
Also check awailability of jQUery script source, my worked variant in VS2012 - -just like in top example
I was getting this same error code:
(Error: 'generateText' is undefined)
...on the code
var bodyText=["The....now."]
I discovered on my text-editor(Notepad++), when typing many lines of text in the directly above the variable bodyText, if I didn't hit return carriage (enter==>WordWrap is off) just kept typing w/o return carriage and let the editor adjust text it worked?
Must be in the settings of Notepad++??

JWplayer Javascript interaction not working

this problem is going to make me bald. Save my hair plz.
i have been trying every possible way to stop and pause and play the JWplayer latest version using its JavaScript API and nothing works.
here is the code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>JW Player 5 playlist</title>
<script src="jquery-1.3.2.min.js" type="text/javascript"></script>
<script type="text/javascript" src="jwplayer.js"></script>
<script type="text/javascript" src="swfobject.js"></script>
</head>
<body>
<!-- START OF THE PLAYER EMBEDDING TO COPY-PASTE -->
<div id="mediaplayer">JW Player goes here</div>
<script type="text/javascript">
jwplayer("mediaplayer").setup({
flashplayer: "player.swf",
file: "lounge warmup.3gp",
skin: "simple/simple.zip",
image: "http://content.bitsontherun.com/thumbs/nPripu9l-480.jpg",
controlbar: "bottom",
width: "400",
height: "8"
});
</script>
<!-- END OF THE PLAYER EMBEDDING -->
<br>
Stop playback
</body>
</html>
why this is not working??
Your code works for me (after I adjusted the "file" to something I had locally). Some possibilities:
Are you loading this with a "file://" URL, or are you loading it from an actual web server? (If from a file:// URL, there might be Flash security restrictions.)
Do you intend to have a height of 8px as you've currently specified? I don't know what your custom skin looks like. In order to see things using default skin I had to specify a larger height.
I'm not very familiar with JWPlayer, but is it possible the file parameter needs to be URL encoded? (If not sure, maybe trying removing the space from the file name and renaming it on the server as well.)
In any case, your code works for me using default skin and different media file. I can play and then click your "stop" link to stop playback. If ideas above don't help, then you'll need to specify exactly what is not working for you.

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