space between images in static html disappears in javascript - javascript

I am trying to understand why my white-space disappears when switching my code to javascript.
This is with static html JSFiddle Basic
And here the "same" in javascript JSFiddle JavaScript
when I set font-size:0px; in css for the static html I get the same result as in javascript. I am just not sure why this is happening and would like to understand it. What is javascript doing differently to html/CSS?
Thanks in advance!

I would say it's because javascript appends each section just after the closing tag of a previous section, leaving no space between previous section closing tag and next section opening tag.
HTML version:
<section>
<!-- content -->
</section>
<section>
<!-- content -->
</section>
JS version:
<section><!-- content --></section><section><!-- content --></section>

This is because in the basic html you have new lines separating the section elements:
<section class="pic"></section>
<section class="pic"></section>
In the approach with JavaScript they are glued together on one line:
<section class="pic"></section><section class="pic">
You can read this to update your knowledge for how to avoid the spacing between the inline-blocks:
https://css-tricks.com/fighting-the-space-between-inline-block-elements/

Related

Pure JavaScript to Capture Link Click Data

I need help creating a pure JavaScript event listener that captures all clicks on a page, gets the link text/URL, find the logical parent DIV of that link and concatenate the values together. Take this example code:
<body>
<div class="heading grid-12">
<!-- Header and navigation links -->
Summer Promotion
</div>
<div class="responsiveGrid">
<!-- page body -->
<img alt="Navy Sweater" src="nsweater.jpg"/>
</div>
<div class="footer grid-12">
<!-- Footer and bottom nav links -->
About Us
</div>
</body>
In the above example, I want to capture where the link logically sits on the page, either header|body|footer based on whether the link is a child of these three top level DIVs. Next, I want to capture the link text from anchor/JavaScript links or the Alt Text from image links. Finally I want to get the path of the link – excluding the protocol, domain and query strings if an anchor link or converted to a static string “Overlay” if the href is ‘# ‘or ‘javascript:void(0);’. Using the code above, I’d want the final concatenated string sent to console.log when any link is clicked:
'header|Summer Promotion|index.html'
'body|Navy Sweater|/cart/sweaters/navy.html'
'footer|About Us|Overlay'
Thanks in advance for your assistance.

How to place a banner on one page which reflect on the rest of the pages automatically?

I have a banner in a div and I like to place it on home page which automatically reflects on rest of the pages?? Is it possible ?? without placing the code on the each page specifically ??.
Any help would be appreciate :)
If you're using PHP, you can write the whole banner in html, then save it as .php (e.g. banner.php). Then somewhere before the content of each of your pages, use PHP's include
keyword
For each of your page you can write it this way:
<body>
<div id='banner'>
<?php include "/path/to/banner.php"; ?>
</div>
<div id='content'>
<!-- Main content here -->
</div>
</body>
Either this can happen with php as #javiniar-leonard recommends, or you can use css.
In every page the basic structure is the same I guess. So target the div and place the div as background:
.main{
background:url("../your_banner_url.jpg");
}

HTML Navigation bar disappearing on page load

Hello I have created a website for my school work and I am trying to implement a navigation bar for all the pages of the site. I got it working on all my other pages but there is one page in particular where it the entire navigation bar disappears when the page is loaded. The header section should display the navigation bar while the body loads the prime number table.The page should have a navbar like this.
However the prime number table page will not load the home and back icons.
I cant get the stackoverflow formatter to accept my html code so I have to put a link to it, sorry!.
This is the source code
Headers should not be in the <head> element; instead, they should be at the top of the <body> element. So move this code:
<div class="header">
<div class="container">
<div class="navbar">
<a class="logo" href="http://w3.cnm.edu/~tteichelmann"></a>
<a class="back" href="http://w3.cnm.edu/~tteichelmann/cis1210" onclick="history.back();" value="Back"></a>
</div>
</div>
</div>
Into the body. Also, HTML 5 introduced the <header> element (more here), which is a more syntactical way of defining a header... Consider that an alternative, not a requirement.
Move your div with the class of header outside of the head section of the document. It should be within the body tags.

innerHTML does not work with Javascript output contents

I try to make some kind of ads rotator as follows:
<html>
<head>
<title></title>
<style>
body {
margin:0;
padding:0;
}
</style>
<script>
function fillBoard() {
s = document.getElementsByClassName('slots');
board = document.getElementById('board');
board.innerHTML = s[0].innerHTML
alert(board.innerHTML);
}
</script>
</head>
<body>
<div id="board" style="width:160px; text-align: center; margin:0">
</div>
<div class="slots" style="display:none">
<!-- THE PROBLEM IS HERE -->
<!-- Begin Hsoub Ads Ad Place code -->
<script type="text/javascript">
<!--
hsoub_adplace = 1310003403401506;
hsoub_adplace_size = '125x125';
//-->
</script>
<script src="http://ads2.hsoub.com/show.js" type="text/javascript"></script>
<!-- End Hsoub Ads Ad Place code -->
</div>
<div class="slots" style="display:none">
<img src="http://lorempixel.com/160/90/sports/1/" />
</div>
<div class="slots" style="display:none">
<img src="http://lorempixel.com/160/90/sports/2/" />
</div>
<div class="slots" style="display:none">
<img src="http://lorempixel.com/160/90/sports/3/" />
</div>
<script>
fillBoard();
</script>
</body>
</html>
In the code above:
There is a div with id board to act as a board that displays contents.
The board should be filled with data supplied from other hidden divs with class name slots using innerHTML property.
To do the above a function named fillBoard() is defined in the head section of the page and then called at the end of it just before closing </body> tag.
What is happening?
The hidden divs slots works fine with divs that contain images. However, in the first div there are a javascript code that should generates ads from an ads network which it does not work.
I expect that the javascript code of the ads network should fill its div with data, then the calling of fillBoard() will just copy its content to the board div. However, this is does not occur!
I need to know how could I overcome this issue?
A live example is found here
You can just show the desired hidden div and it's usually a better practice than copying DOM content. If you make sure to only show one of the hidden divs at a time you can show the image always in the same place.
Try this to show the first "slots" element:
s[0].style.display = 'block';
Ok so after some more digging I've found the issue, although I don't have an easy solution at the moment.
The js file show.js is generating some ad content inside of an iframe for you, which you are placing in the first 'slots' div. Simple enough. When you are setting the content of the board to the content of the first slots class, an iframe is being created in the board div but without the same content.
After some searching it seems that innerHTML of an iframe will not copy the contents of the iframe if it comes from a domain other than the page domain for security reasons.
It seems to me that the solution at this point is to either show and hide the slots divs like Zhertal suggested or you can possible find some other way to physically move the content of the slots div into board, but this may still be a violation of the same security concern. I'm going to keep digging and I'll edit this answer if I find anything more.
Reference SO posts:
Get IFrame innerHTML using JavaScript
Javascript Iframe innerHTML

How to prime HTML for use with JS accordion effect?

I've got a website set up with well structured pages, eg. <h1> for the website name, <h2> for the page name and <h3> for the different sections on the page.
Anyway, I was looking to set a bunch of the really long pages (an FAQ page for example) up with an "accordion" effect, with the <h3> elements being the toggle and the content directly following being toggled. But the collapsible content needs to be in it's own <div class="draw"> (or similar) and this isn't how the content is set up currently. I was hoping this was possible without touching the existing HTML and just somehow changing the DOM with JS (with jQuery assistance?) to accommodate.
I thought maybe wrapping content between the <h3> elements in a classed <div> might work but wouldn't know how to get this done. Help?
Here's one way to do it that doesn't rely on traversable DOM elements between the h3 tags. I'm not sure how efficient it is to swap out the entire contents of the body tag like this on every load though...
$(document).ready(function(){
var content = $('body').html();
content = content.replace(/(<\/h3>)((.|\n|\r)*?)(<h\d>|$)/gi, "$1<div class=\"draw\">$2</div>$4");
$('body').html(content);
});
I tested this out on content formatted like so:
<body>
<h1>Title</h1>
<h2>Sub-Title</h2>
<h3>Section Title</h3>
this is some content
<h1>Title</h1>
<h2>Sub-Title</h2>
<h3>Section Title</h3>
this is some content
...
</body>
The jQuery documentation on the accordion widget is very easy to use. http://docs.jquery.com/UI/Accordion. But using the jQuery method only works if you have the structure they describe in the docs. In other words (as far as I know) it is impossible to use the jQuery accordion widget without touching your HTML. This is the structure:
<div id="accordion">
<h3>Tab 1</h3>
<div>
First tab content
</div>
<h3>Tab 2</h3>
<div>
Tab two content
</div>
<h3>Tab 3</h3>
<div>
Tab three content
</div>
</div>
Then you would create the widget using the line of javascript:
$("#accordion").accordion();
If you wanted to use jQuery to format your HTML for you, you still need a way to select and parse your HTML. Each tab's content needs to be selectable some how. If your HTML already has the tabs separated somehow, then you need to take a look at this page http://docs.jquery.com/Manipulation. It should be pretty straightforward.
If you're willing to consider non-JS alternatives, Stu Nicholls has some interesting html/css (no js) options on his CSS Play website:
http://www.cssplay.co.uk/menu/gallery3l
http://www.cssplay.co.uk/menus/tabmenu.html
(Among others)
I suppose it looks like this:
<html>
<h1>site name</h1>
<h2>page name</h2>
<h3>section</h3>
<p>some stuff</p>
<p>different paragraph</p>
<ul><li>a list</li></ul>
<h3>next section</h3>
<p>different stuff</p>
...
</html>
you could iterate over all direct children of html. At first h3 you start collection all subsequent items until the next h3. if a next h3 comes or page end you create a div, and add it after the starting h3 all collected elements should be removed from their parent (the html) and added as children of the div.
looking at http://docs.jquery.com/Traversing this should be easy. I'm not an expert on jquery, but it should be doable.
Dave Ward of Encosia has great 10 minute tutorial on jQuery, Firebug and selectors that builds exactly what you looking for.

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