I'm trying to replace my footer's text with "Hello World" and I do not want to edit the HTML by adding a class or an id
HTML:
<footer>
<div>
Lorem ipsum dolor sit amet, consectetur adipisicing elit.
</div>
</footer>
JavaScript:
document.getElementById(footer).innerHTML="Hello World";
The problem is that, when I do the code above, nothing is changing
footer is not the id of the element you are selecting, its the tag name.
You can use tag selector for selecting footer.
And to change the div content(i am assuming you want to change the text, keeping div as is), you can select div using the tag selector
and can change the text.
document.getElementsByTagName("footer")[0].getElementsByTagName("div")[0].innerHTML = "Hello World";
Above statement is broken down :
document.getElementsByTagName("footer") //select footer
document.getElementsByTagName("footer")[0] //1st matched element
document.getElementsByTagName("footer")[0].getElementsByTagName("div") // select div
document.getElementsByTagName("footer")[0].getElementsByTagName("div")[0] // first div
document.getElementsByTagName("footer")[0].getElementsByTagName("div")[0].innerHTML = "Hello World"; //change content
document.getElementsByTagName("footer")[0].getElementsByTagName("div")[0].innerHTML = "Hello World";
<footer>
<div>
Lorem ipsum dolor sit amet, consectetur adipisicing elit.
</div>
</footer>
It's because you are selecting id which doesn't exist, try this instead:
document.querySelector('footer').innerHTML = "Hello world";
#edit
document.querySelector('footer').innerHTML = "Hello world";
<footer>
<div>
Lorem ipsum dolor sit amet, consectetur adipisicing elit.
</div>
</footer>
There are a couple of ways by which you can achieve the desired:
1) If you need to change the HTML, you should use the below code for targeting the footer:
document.getElementsByTagName('footer')[0].innerHTML = '<div>Hello World</div>';
document.getElementsByTagName('footer')[0].innerHTML = '<div>Hello World</div>';
<footer>
<div>
Lorem ipsum dolor sit amet, consectetur adipisicing elit.
</div>
</footer>
2) If you wish to just modify the text, without changing the HTML, you can also make use of the following:
document.getElementsByTagName('footer')[0].innerText = 'Hello World';
document.getElementsByTagName('footer')[0].innerText = 'Hello World';
<footer>
<div>
Lorem ipsum dolor sit amet, consectetur adipisicing elit.
</div>
</footer>
The difference between the two approaches is that the former keeps the text inside the div while the latter keeps inside footer tag itself.
If you look through inspection in the two, it will have an output like the below:
1)
<footer>
<div>
Hello World
</div>
</footer>
2)
<footer>
Hello World
</footer>
Related
What is the best way of looping through a text block to find the index position of every element starting with icon- using javascript or jQuery.
I also want to ignore any <br> tags in the index position calculation.
I have thought about using substring to find the position of the elements.
Here is an example text block
<div class="intro">
Lorem dolor sit<br>
<span class="icon-pin"></span> consectetur<br>
adiposcing elit, sed do <span class="icon-hand"></span> lorem<br>
ipsum dolor sit amet.
</div>
What I want to get out of this is how many characters in (minus white space and tags) each [class^=icon-] is.
For example the first [class^=icon-] is 14 characters in
Thanks
I think this is what your looking for, it will find the index of the spans and ignore br
$(".intro [class^=icon-]").each(function() {
var i = $(".intro *:not(br)").index(this)
console.log(i)
})
Demo
$(".intro [class^=icon-]").each(function() {
var i = $(".intro *:not(br)").index(this)
console.log(i)
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="intro">
Lorem dolor sit<br>
<span class="icon-pin"></span> consectetur<br> adiposcing elit, sed do <span class="icon-hand"></span> lorem<br> ipsum dolor sit amet.
</div>
You can achieve it with jquery each like in the example
$('[class^="icon-"]','.intro').each(function(index, element){
console.log(index,element);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="intro">
Lorem dolor sit<br>
<span class="icon-pin"></span> consectetur<br>
adiposcing elit, sed do <span class="icon-hand"></span> lorem<br>
ipsum dolor sit amet.
</div>
You can use more than 1 classes on a element. So, You can keep using your "icon-" classes and add another one to capture them like "grabber" and now you are good to go. Just find the "grabber" classes with a for loop like;
var y = "number of grabbers";
for(x:0;x<y;x++){
$('.grabber')[x].function.....
}
I have dynamically added div elements with structure as follows.
<div class="blogPost">
<a href="link/to/full_artical">
<h1>Some Heading</h1>
</a>
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit.
</p>
</div>
I want to remove a wrappers from h1 elements and add them to parent div elements. The result should be like:
<a href="link/to/full_artical">
<div class="blogPost">
<h1>Some Heading</h1>
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit.
</p>
</div>
</a>
I wish there is a way in jquery maybe a combination of unwrap() and wrap() functions.
I do not have access to the source of this dynamically added content.
divs are being added dynamically.
Thanks in advance.
EDIT
tried
$('.blogPost').wrap('')
Not Working.
You can use .clone() to copying a element and store it in variable. Use .unwrap() to remove a parent of h1 and use .wrap() to wrapping copied element around .blogPost.
var clone = $("a").clone().children().remove().end();
$("h1").unwrap().parent().wrap(clone);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="blogPost">
<a href="link/to/full_artical">
<h1>Some Heading</h1>
</a>
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit.
</p>
</div>
Another way:
var href = $('.blogPost').children('a').attr('href');
$('.blogPost').wrap('');
$('h1').unwrap();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="blogPost">
<a href="link/to/full_artical">
<h1>Some Heading</h1>
</a>
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit.
</p>
</div>
var link = $('a'),
heading = link.find('h1'),
blogPost = $('.blogPost');
blogPost.prepend(heading);
blogPost.wrap(link);
link.remove();
CODEPEN
How do I select with Regular Expression the text after the </h2> closing tag until the next <h2> opening tag
<h2>my title here</h2>
Lorem ipsum dolor sit amet <b>with more tags</b>
<h2>my title here</h2>
consectetur adipisicing elit quod tempora
In this case I want to select this text: Lorem ipsum dolor sit amet <b>with more tags</b>
Try this: /<\/h2>(.*?)</g
This finds a closing tag, then captures anything before a new opening tag.
in JS, you'd do this to get just the text:
substr = str.match(/<\/h2>(.*?)<h2/)[1];
Regex101
var str = '<h2>my title here</h2>Lorem ipsum <b>dolor</b> sit amet<h2>my title here</h2>consectetur adipisicing elit quod tempora';
var substr = str.match(/<\/h2>(.*?)<h2/)[1].replace(/<.*?>/g, '');
console.log(substr);
//returns: Lorem ipsum dolor sit amet
Try
/<\/h2>((?:\s|.)*)<h2/
And you can see it in action on this regex tester.
You can see it in this example below too.
(function() {
"use strict";
var inString, regEx, res, outEl;
outEl = document.getElementById("output");
inString = "<h2>my title here</h2>\n" +
"Lorem ipsum dolor sit amet <b>with more tags</b>\n" +
"<h2> my title here </h2>\n" +
"consectetur adipisicing elit quod tempora"
regEx = /<\/h2>((?:\s|.)*)<h2/
res = regEx.exec(inString);
console.log(res);
res.slice(1).forEach(function(match) {
var newEl = document.createElement("pre");
newEl.innerHTML = match.replace(/</g, "<").replace(/>/g, ">");
outEl.appendChild(newEl);
});
}());
<main>
<div id="output"></div>
</main>
I added \n to your example to simulate new lines. No idea why you aren't just selecting the <h2> with a querySelector() and getting the text that way.
Match the tags and remove them, by using string replace() function. Also this proposed solution removes any single closure tags like <br/>,<hr/> etc
var htmlToParse = document.getElementsByClassName('input')[0].innerHTML;
var htmlToParse = htmlToParse.replace(/[\r\n]+/g,""); // clean up the multiLine HTML string into singleline
var selectedRangeString = htmlToParse.match(/(<h2>.+<h2>)/g); //match the string between the h2 tags
var parsedString = selectedRangeString[0].replace(/((<\w+>(.*?)<\/\w+>)|<.*?>)/g, ""); //removes all the tags and string within it, Also single tags like <br/> <hr/> are also removed
document.getElementsByClassName('output')[0].innerHTML += parsedString;
<div class='input'>
<i>Input</i>
<h2>my title here</h2>
Lorem ipsum dolor sit amet <br/> <b>with more tags</b>
<hr/>
<h2>my title here</h2>
consectetur adipisicing elit quod tempora
</div>
<hr/>
<div class='output'>
<i>Output</i>
<br/>
</div>
Couple of things to remember in the code.
htmlToParse.match(/(<h2>.+<h2>)/g); returns an array of string, ie all the strings that was matched from this regex.
selectedRangeString[0] I am just using the first match for demo purspose. If you want to play with all the strings then you can just for loop it with the same logic.
I am using a animatedModal.js to display full screen modal on my page.
It works properly and is triggered by clicking on a button.
But, instead of that, i would need it to open automatically once the user enters the site, aka, it needs to be opened before the main page content.
This is the markup:
<!-- MODAL STARTS -->
<a id="demo01" href="#animatedModal">DEMO01</a>
<div id="animatedModal">
<div class="close-animatedModal">
CLOSE MODAL
</div>
<div class="modal-content">
</div>
</div>
<!-- PAGE CONTENT -->
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit</p>
And it is triggered by
$("#demo01").animatedModal();
Fiddle can be found at https://jsfiddle.net/5zLe3npu/
What would be the best solution to display it first, before the content?
I am a JS newbie so sorry for potentially stupid question.
Use trigger() API Documentation
Try this
$("document").ready(function() {
$("#demo01").animatedModal();
$("#demo01").trigger('click');
});
Demo Here
You could use the .on method to specify what to do on-click of the close button, such as showing the content. And to hide the content initially you could just use style='display:none;' on a containing the content.
HTML -
<!-- MODAL STARTS -->
<div id="animatedModal">
<div class="close-animatedModal">
CLOSE MODAL
</div>
<div class="modal-content">
</div>
</div>
<!-- PAGE CONTENT -->
<div id='container' style='display:none;'>
<a id="demo01" href="#animatedModal">DEMO01</a>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit</p>
</div>
JQuery -
$("#demo01").animatedModal(); //initialize animatedModal
$("#demo01").click(); //triggers opening of Modal.
$(".close-animatedModal").on( "click", function() {
$("#container").show();
});
Please see JSFiddle - http://jsfiddle.net/w1gw64aj/
If this answers your question, please mark this as the accepted answer.
I am looking for a way to separately process the lines in a <div> that are wrapped due to a narrow width. That is, if my text is "Lorem ipsum dolor sit amet lorem \n ipsum dolor sit amet" and it is seen as below:
Lorem ipsum dolor
sit amet lorem
ipsum dolor sit
amet
Then I should be able to encapsulate each 'line' in a, say, <span> tag, such as:
<span id="line0">Lorem ipsum dolor<span>
<span id="line1">sit amet lorem</span>
... etc.
Edit: We can assume that the width and height of the div is fixed and known.
I couldn't find a proposed solution, if any exists; although there is a good suggestion for counting the lines for a fixed line-height: How to check for # of lines using jQuery
Starting with this:
<div class="narrow">Lorem ipsum dolor sit amet lorem ipsum dolor sit amet</div>
css:
.narrow {
width:60px;
}
Insert some placeholders where there are spaces:
$('.narrow').html($('.narrow').html().replace(/ /g,"<span class='count'> </span>"))
Determine the y-position of each placeholder:
$('.narrow .count') .each(function() {
var myPos = $(this).position()
alert(myPos.top)
})
From there you should be able to figure out where the start/end points of each line based on its y-position.