I have one line of JavaScript;
alert('test');
It's included through the following HTML:
<html>
<head>
<script type="text/javascript" src="code.jquery.com/jquery-latest.min.js"></script>;
<script type="text/javascript" src="test.js"></script>
<link rel="stylesheet" type="text/css" href="test.css">
</head>
<body>
<script type="text/javascript" src="test.js"></script>
</body>
</html>
It fires the alert box twice. All browsers.
Why?
Is this normal?
Please!
More code is needed to be sure (always list the full example) but while using Google Chrome try placing debugger; before your alert('test'); call and you will be able to compare the call stacks from the first and second passes through the code. This should be enough information to help you figure out why.
You import the same script twice in your HTML, thus running it twice. Remove one of the two script tags and you should be groovy.
<html>
<head>
<script type="text/javascript" src="code.jquery.com/jquery-latest.min.js"></script>
<script type="text/javascript" src="test.js"></script>
<link rel="stylesheet" type="text/css" href="test.css">
</head>
<body>
</body>
</html>
On a separate note - you don't need that semi-colon after the jQuery import.
Related
Context
I've used Mocha before many times, both in the browser and just using the command line. I tend to use Chai's expect module for bdd.
I have five test files that have been working with command line npm test. I just want to run the tests in the browser for better debugging.
Problem
The setup is just boggling my mind. I either get a blank Mocha page without tests or I see the first test flash on screen, then it redirects.
Current specRunner.html
<!DOCTYPE HTML
<html>
<head>
<title>Mocha Tests</title>
<link rel="stylesheet" href="node_modules/mocha/mocha.css" />
<script src="node_modules/jquery/dist/jquery.min.js"></script>
<script src="node_modules/mocha/mocha.js"></script>
<script src="node_modules/chai/chai.js"></script>
<script>mocha.setup('bdd');</script>
<script src="mineLocation.js"></script>
<script src="test/mineTests.js"></script>
<script>
window.expect = chai.expect;
mocha.run();
</script>
</head>
<body>
<div id="mocha"></div>
</body>
</html>
Previous Attempts
I've tried moving script tags around, thinking that dependencies are being unmet at load time.
I've tried relative vs. absolute paths. Console says all the tags are loading correctly.
I've tried modifying the run script tag. When it is as the example above, it turns out a blank page and says "Cannot read property 'appendChild' of null", pointing back to Mocha:
When the run script tag looks like this:
$(function() {
window.mochaPhantomJS ? mochaPhantomJS.run() : mocha.run();
});
It redirects from /specRunner.html to /2,1 and the console error repeats about every 30 seconds.
Here you go, just tested it.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Mocha Test</title>
<link rel="stylesheet" type="text/css" href="node_modules/mocha/mocha.css">
</head>
<body>
<div id='mocha'></div>
<div id='app'></div>
<script src="node_modules/mocha/mocha.js"></script>
<script src="node_modules/chai/chai.js"></script>
<script src="app.js"></script>
<script>
mocha.setup('bdd');
var expect = chai.expect;
</script>
<!-- Tests -->
<script src="app_test.js"></script>
<script>
mocha.run();
</script>
</body>
</html>
So, I've found that it's not necessarily an issue with the HTML setup, but rather an issue with a test.
Setting the location variable globally within the file causes the strange redirection (to /2,1) and error "Cannot read property 'appendChild' of null".
Moving the variable within the describe statement, on line 4, fixes the problem.
My final HTML is cleaner as well:
<html>
<head>
<meta charset="utf-8">
<title>Mocha Tests</title>
<link rel="stylesheet" href="node_modules/mocha/mocha.css" />
</head>
<body>
<div id="mocha"></div>
<script src="node_modules/mocha/mocha.js"></script>
<script>mocha.setup('bdd');</script>
<script src="node_modules/chai/chai.js"></script>
<script>var expect = chai.expect;</script>
<!-- src files -->
<script src="narcissistic.js"></script>
<script src="morseCodeDecoder.js"></script>
<script src="windComponents.js"></script>
<script src="mineLocation.js"></script>
<!-- test files -->
<script src="test/narcissisticTests.js"></script>
<script src="test/morseTests.js"></script>
<script src="test/windTests.js"></script>
<script src="test/mineTests.js"></script>
<script>mocha.run();</script>
</body>
</html>
I am trying to setup bootstrap-calendar, but I am having some difficulties. I used the command
$ bower install bootstrap-calendar
to download the dependences and I created a test index file which looks like this:
<html>
<head>
<title>calendar test</title>
<script type="text/javascript" src="bower_components/bootstrap-calendar/js/language/en-GB.js"></script>
<script type="text/javascript" src="bower_components/bootstrap-calendar/js/calendar.js"></script>
<script type="text/javascript" src="bower_components/bootstrap/docs/assets/js/bootstrap.js"></script>
<script type="text/javascript" src="bower_components/jquery/jquery.min.js"></script>
<script type="text/javascript" src="bower_components/moment/moment.js"></script>
<script type="text/javascript" src="bower_components/underscore/underscore-min.js"></script>
<link rel="stylesheet" type="text/css" href="bower_components/bootstrap-calendar/css/calendar.css">
<link rel="stylesheet" type="text/css" href="bower_components/bootstrap/docs/assets/css/bootstrap.css">
<script type="text/javascript">
var calendar = $('#calendar').calendar();
</script>
</head>
<body>
<div id="calendar"></div>
</body>
</html>
Opening index.html with a browser, gives an empty page. Any idea why?
Thanks in advance
It is possible that simply the order which you include your scripts is wrong. I usually put jQuery on top (considering most things are dependent upon it, it will need to be loaded first) then bootstrap.js below it, then underscore, so on and so forth. Scripts should also be included at the end of the body for speed, although it could also be possible that your scripts are running in the head before the dom is loaded, and #calendar is not found simply because it's not there yet. Try those things, good luck!
I was originally just using JSFiddle, but I wanted to move my project over to Notepad++ so I could have the files on my computer. The problem is, my Javascript on my page is not going into effect.
Heading Code:
<head>
<link href="C:/HTML/App/app.css" type="text/css" rel="stylesheet" />
<script type='text/javascript' src='C:/HTML/App/app.js'></script>
<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.9.1/jquery-ui.min.js"></script>
</head>
Any reason why? It links to my style sheet just fine, but my app.js does not seem to be working.
Three things:
app.js uses jQuery so the jQuery file needs to be included first
Also, you said you're running this on your PC. You could be using localhost, but if you're running from file://, src="//... won't work because your browser will be looking for file://ajax.googleapis.com/ajax/libs/jqueryui/1.9.1/jquery-ui.min.js instead of http://ajax.googleapis.com/ajax/libs/jqueryui/1.9.1/jquery-ui.min.js so all you need to do is add the http:
But did you mean jQuery not jQuery UI? (Thanks #ahren)
<head>
<link href="C:/HTML/App/app.css" type="text/css" rel="stylesheet" />
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<!-- <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.9.1/jquery-ui.min.js"></script> -->
<script type='text/javascript' src='C:/HTML/App/app.js'></script>
</head>
Jquery comes first, like so:
<head>
<link href="C:/HTML/App/app.css" type="text/css" rel="stylesheet" />
<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.9.1/jquery-ui.min.js"></script>
<script type='text/javascript' src='C:/HTML/App/app.js'></script>
</head>
I got the SyntaxHighlighter from http://alexgorbatchev.com/SyntaxHighlighter/
I cant get the autoloader to work. What am I doing wrong?
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<link href="styles/shCore.css" rel="stylesheet" type="text/css" />
<link href="styles/shCoreDefault.css" rel="stylesheet" type="text/css" />
<script src="scripts/shCore.js" type="text/javascript"></script>
<script src="scripts/shAutoloader.js" type="text/javascript"></script>
<script type="text/javascript">
SyntaxHighlighter.autoloader('js scripts/shBrushJScript.js');
SyntaxHighlighter.all();
</script>
</head>
<body>
<pre class="brush: js">
function foo()
{
}
</pre>
</body>
</html>
I've made sure that my urls/script paths are correct.
This works, but I'd really like to get the autoloader working.
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<link href="styles/shCore.css" rel="stylesheet" type="text/css" />
<link href="styles/shCoreDefault.css" rel="stylesheet" type="text/css" />
<script src="scripts/shCore.js" type="text/javascript"></script>
<script src="scripts/shBrushJScript.js" type="text/javascript"></script>
<script type="text/javascript">
SyntaxHighlighter.all();
</script>
</head>
<body>
<pre class="brush: js">
function foo()
{
}
</pre>
</body>
</html>
To make "SyntaxHighlighter.autoloader" work, you should move the line under your "pre" sections or put it into document ready's callback.
The "autoloader" method checks current loaded "pre" sections and requests corresponding brushes. So if it's executed before the body element loaded, no brush will be loaded.
My answer deals with the latest version of SyntaxHighlighter at the time of writing, which is version 3.0.83.
I was also having this problem and then I tried the alternative syntax for the autoloader function and it worked for me even with relative paths. Please put the following code at the bottom of your page below all your <pre> tags:
<script type="text/javascript" src="js/shCore.js"></script>
<script type="text/javascript" src="js/shAutoloader.js" ></script>
<script type="text/javascript">
SyntaxHighlighter.autoloader(
['js','jscript','javascript','js/shBrushJScript.js'],
['bash','shell','js/shBrushBash.js'],
['css','js/shBrushCss.js'],
['xml','js/shBrushXml.js'],
['sql','js/shBrushSql.js'],
['php','js/shBrushPhp.js']
);
SyntaxHighlighter.all();
</script>
Please note that the documentation about the alternative syntax on the SyntaxHighlighter website here is currently wrong. It suggests that you put in an array within an array and also that you must use full paths. Both are misleading statements because the following does not work and no error is thrown either:
SyntaxHighlighter.autoloader([ [ 'alias1', 'alias2', '/full/path/to/brush.js' ] ])
The truth is that to use the alternative syntax you just put in a series of arrays (no parent array is required!), like so and can have relative or absolute paths:
SyntaxHighlighter.autoloader([ 'alias1', 'alias2', 'path/to/brush.js' ], [ 'alias1', 'alias2', 'path/to/brush2.js' ]),
Additionally, I must note that I had a problem with using the unminified version of SyntaxHighlighter (the file under the src folder bundled with SyntaxHighlighter). It was asking for the XRegExp library which can be downloaded here: http://xregexp.com/. However, even after including this library (which for some reason does not need to be included in the minified version - very strange I know!) the code was still throwing errors. In summary, I used the minified version (available under the scripts directory) with no problems.
To finish off this answer, here is my fully working SyntaxHighlighter autoloader code:
<!DOCTYPE>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Hello SyntaxHighlighter</title>
<link type="text/css" rel="stylesheet" href="styles/shCore.css"/>
<link type="text/css" rel="stylesheet" href="styles/shThemeDefault.css"/>
</head>
<body style="background: white; font-family: Helvetica">
<h1>Hello SyntaxHighlighter</h1>
<pre class="brush: js;">
function helloSyntaxHighlighter()
{
return "hi!";
}
</pre>
<script type="text/javascript" src="js/shCore.js"></script>
<script type="text/javascript" src="js/shAutoloader.js" ></script>
<script type="text/javascript">
SyntaxHighlighter.autoloader(
['js','jscript','javascript','js/shBrushJScript.js'],
['bash','shell','js/shBrushBash.js'],
['css','js/shBrushCss.js'],
['xml','js/shBrushXml.js'],
['sql','js/shBrushSql.js'],
['php','js/shBrushPhp.js']
);
SyntaxHighlighter.all();
</script>
</html>
Try:
<script type="text/javascript">
window.onload = function ()
{
SyntaxHighlighter.autoloader('js scripts/shBrushJScript.js');
SyntaxHighlighter.all();
}
</script>
For people reading this in future, for some reason the shAutoloader.js script's path is locked in...
Meaning if you want it to auto load you're going to have to put it in this specific path:
js/syntaxhighlighter/shAutoloader.js along with the rest of the language scripts.
It's stupid but if anyone knows how to fix this, let me know :D
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<link href="styles/shCore.css" rel="stylesheet" type="text/css" />
<link href="styles/shCoreDefault.css" rel="stylesheet" type="text/css" />
<script src="scripts/shCore.js" type="text/javascript"></script>
<script src="scripts/shAutoloader.js" type="text/javascript"></script>
</head>
<body>
<pre class="brush: js">
function foo()
{
}
</pre>
<script type="text/javascript">
SyntaxHighlighter.autoloader('js scripts/shBrushJScript.js');
SyntaxHighlighter.all();
</script>
</body>
</html>
I have a page on my website that I am making a call to using a jQuery ajax call. It loads in a div. But whenever I the page is loaded, it loses the snytax highlighting that it should be displaying. Ex:
<html>
<head>
<!-- syntax highlighting script -->
<script type="text/javascript" src="syntaxhighlighter.js"></script>
</head>
<body>
<!-- div that displays ajax page cal -->
<div id="awesomeo">
</div>
</body>
</html>
It works on the initial page load if I have something in awesomeo but if a page is loaded via AJAX into the div, the syntax disappears.
EDIT:
The following is the code that is in the header:
<script type="text/javascript" src="/scripts/shCore.js"></script>
<script type="text/javascript" src="/scripts/shBrushBash.js"></script>
<script type="text/javascript" src="/scripts/shBrushCpp.js"></script>
<script type="text/javascript" src="/scripts/shBrushCSharp.js"></script>
<script type="text/javascript" src="/scripts/shBrushCss.js"></script>
<script type="text/javascript" src="/scripts/shBrushJava.js"></script>
<script type="text/javascript" src="/scripts/shBrushJScript.js"></script>
<script type="text/javascript" src="/scripts/shBrushPhp.js"></script>
<script type="text/javascript" src="/scripts/shBrushPlain.js"></script>
<link type="text/css" rel="stylesheet" href="/styles/shCore.css"/>
<link type="text/css" rel="stylesheet" href="/styles/shThemeDefault.css"/>
<script type="text/javascript">
SyntaxHighlighter.config.clipboardSwf = '/scripts/clipboard.swf';
SyntaxHighlighter.all();
</script>
This is from: http://alexgorbatchev.com/wiki/SyntaxHighlighter
That is all that is used for syntax highlighting... Suggestions?
Figured it out:
Adding
<script type="text/javascript">
SyntaxHighlighter.highlight();
</script>
on the page being called works.
your syntaxhighlighter probably has a function bound to document.onload. You'll need to find that function and call it again.
How is your syntax highlighting function called? If the syntax highlighting is fired on a body onload() event, it will obviously not work after an AJAX call because the body is already loaded.
When you receive the ajax response, write this code there too to re-style the code.
// your ajax respone code here and after that:
SyntaxHighlighter.config.clipboardSwf = '/scripts/clipboard.swf';
SyntaxHighlighter.all();