I'm trying to get nodes containing text from html file using Javascript and jQuery.
if I have a node like
`
<div>txt0
<span>txt1</span>
txt2
</div>
How can I select elements that meets this criteria??
Meaning, I need to retrieve thedivand thespan` , and it would be even better to know location of the text.
I'm trying to get the text to replace it with images in a later function.
I tried this
`
$('*').each(function(indx, elm){
var txt = $(elm).text();
// my code to replace text with images here
});
`
but it does not get the required results.. it does all the parsing in the first element, and changes the html totally.
I don't know exactly what you're trying to solve, but perhaps you can be a bit more specific with your selector?
$("div span").text(); // returns 'txt1'
$("div").text(); // returns 'txt0txt1txt2'
By adding ids and/or classes to your html, you can be very specific:
<div class="name">Aidan <span class="middlename">Geoffrey</span> Fraser</div>
...
// returns all spans with class
// "middlename" inside divs with class "name"
$("div.name span.middlename").text();
// returns the first span with class
// "middlename" inside the fourth div
// with class "name"
$("div.name[3] span.middlename[0]").text();
JQuery has pretty good documentation of these selectors.
If this doesn't help, consider explaining the problem you're trying to solve.
Your markup structure is a bit uneasy. Consider changing to something like this
<div>
<span>txt0</span>
<span>txt1</span>
<span>txt2</span>
</div>
Then using jQuery
$("div span").each(function(k,v) {
$(this).html("<img src=\""+v+".jpg\" />"); //replace with the image
});
Related
Working on a project in which I'm wanting to make the appended text appear bold. Based on my research it should be .bold() but that's not making my appended text bold, and is instead showing my text surrounded by "< b >< /b >". What am I doing incorrectly? Here is my code:
var breweryname=response.results[i].name;
var breweryName = $("<p class='title'>").text(response.results[i].name.bold());
breweryDiv.append(breweryName);
I would suggest not using .html() as it could have injections (Which you should avoid). .name is just a text name which you want it bold then keep using .text.
To apply css (bold fonts) to your dynamically added elements (response.results[i].name).
You can simply use jQuery .css function which will let you design your element as exactly as normal css is a much better approach.
Run snippet below to see it working.
//Div to append to
var breweryDiv = $('#breweryDiv')
//Response
var breName = 'Random Name' //response.results[i].name;
//Text
var breweryName = $("<p class='title'>").text(breName);
//Apply Css
$(breweryName).css({
'font-weight': 'bold'
})
//Append Results
breweryDiv.append(breweryName);
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="breweryDiv">
</div>
Instead of using .text(), use .html() (ensure that you trust the response - you dont want any injection!) You could also make your CSS class title with font-weight: bold if you'd like to separate behavior and presentation.
I want to remove/hide a piece of text that loads on my page.
The element doesn't have an id to relate to so I want to use a text-specific method.
Let's say the text is:"remove this line of text".
The html looks like this:
<div class="aClassName">
<p>
<strong>remove this line of text</strong>
... the rest of the content.
</p>
I have tried the following:
jQuery(document).ready(function($){
document.body.innerHTML = document.body.innerHTML.replace('remove this line of text', '');
});
Didn't work. So I tried this:
jQuery(document).ready(function($){
$("body").children().each(function () {
$(this).html( $(this).html().replace(/remove this line of text/g,"") );
});
});
Didn't work. The idea is that after the page is loaded it removes the line.It doesn't produces any errors as well. Not even in the firebug.
Anyone?
Target Elements Based On Their Content
You could accomplish this using the :contains() pseudoselector in jQuery that would allow you to target certain elements based on their contents :
$(function(){
// This will remove any strong elements that contain "remove this line of text"
$('strong:contains("remove this line of text")').remove();
});
You can see a working example of this here.
Broader Approach (Just Targets Elements Based On Selectors)
If you wanted a more simply target it by a more general selector (i.e. any <strong> tags that appear beneath a class called aClassName :
$('.aClassName strong').remove();
You can see an example of this approach here.
I guess you can use find() and text(), i.e.:
$('.aClassName').find('strong').text("123");
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="aClassName">
<p>
<strong>remove this line of text</strong>
... the rest of the content.
</p>
Or simply:
$('strong:contains("remove this line of text")').text("New text");
Update:
After analyzing the link supplied on the comments, you can use the following:
$('.payment_method_mollie_wc_gateway_ideal').find('strong').text("");
I'm trying to extract data from a JS function that only renders an element's HTML - and I need the element's ID or class.
Example:
JS Element Value:
x = '<div class="active introjs-showElement introjs-relativePosition" id="myId">Toate (75)</div>';
I need to do get the element's id or class (in this case the id would be myId).
Is there any way to do this? Strip the tags or extract the text via strstr?
Thank you
The easiest thing to do would be to grab the jQuery object of the string you have:
$(x);
Now you have access to all the jQuery extensions on it to allow you to get/set what you need:
$(x).attr('id'); // == 'myId'
NOTE: This is obviously based on the assumption you have jQuery to use. If you don't, then the second part of my answer is - get jQuery, it's designed to make operations like these very easy and tackle compatibility issues where it can too
You may want to take a look at this:
var div = document.createElement('div');
div.innerHTML = '<div class="active introjs-showElement introjs-relativePosition" id="myId">Toate (75)</div>';
console.log(div.firstChild.className);
console.log(div.firstChild.id);
My first SO question! Here's what I am trying to do:
I'm rewriting a tool that generates some code a user can paste directly into Craigslist and other classified ad posting websites. I have created a list of websites (they populate from a database with PHP) the user can choose from with a radio button, and I want their choice to populate as bare text (not a link) between some <p></p> elements in a textarea. I'm using jQuery for this.
Textarea before the user chooses:
<p id="thing"></p>
Textarea after the user chooses:
<p id="thing">www.somewebsite.com</p>
HTML
<input type="radio" name="sitechoice" value="www.websiteone.com">www.websiteone.com<br />
<input type="radio" name="sitechoice" value="www.secondwebs.com">www.secondwebs.com
<textarea>
Some stuff already in here
Here is the website you chose:
<p id="thing"></p>
More stuff already here.
</textarea>
JS
$(document).ready(function () {
$("input").change(function () {
var website = $(this).val();
alert(website);
$("#thing2").html(website);
});
});
JS Fiddle (With comments)
If you see the JS Fiddle, you can see that I put another p element on the page outside the textarea, and it updates just fine, but the one inside the textarea does not. I have read many other like questions on SO and I'm starting to think that I can't change an element that's between textarea tags, I can only change the entire textarea itself. Please, lead me to enlightenment!
You actually can fairly easily manipulate the text contents of the textarea like it is part of the DOM, by transforming its contents into a jQuery object.
Here is a jsFiddle demonstrating this solution: http://jsfiddle.net/YxtH4/2/
The relevant code, inside the input change event:
// Your normal code
var website = $(this).val();
$("#thing2").html(website);
// This turns the textarea's val into a jQuery object ...
// And inserts it into an empty div that is created
var textareaHtml = $('<div>' + $("#textarea").val() + '</div>');
// Here you can do your normal selectors
textareaHtml.find("#thing").html(website);
// And this sets the textarea's content to the empty div's content
$("#textarea").val(textareaHtml.html());
The empty div wrapping your HTML is so that you can easily retrieve it as a string later using jQuery's .html() method, and so the parse does not fail if additional text is entered around the p element inside the textarea.
The real magic is $($("#textarea").val()), which takes your textarea's text and parses it into an HTML node contained in a jQuery object.
It can't do it the way that you are thinking (i.e., manipulate it as if it were a DOM element), but it is still accessible as the value of the textarea, so you can retrieve it like that, use basic string manipulation to alter it, and then set the updated string as the new value of the textarea again.
Something like this . . . first give the <textarea> an id value:
<textarea id="taTarget">
Some stuff already in here
Here is the website you chose:
<p id="thing"></p>
More stuff already here.
</textarea>
Then alter your script like this:
$(document).ready(function () {
$("input").change(function () {
var website = $(this).val();
var currentTAVal = $("#taTarget").val();
$("#taTarget").val(currentTAVal.replace(/(<p id="thing">)([^<]*)(<\/p>)/, "$1" + website + "$3"));
});
});
Unless you need the <p> element in there, you might consider using a more simple placeholder, since it won't actually act as an HTML element within the textarea. :)
EDIT : Fixed a typo in the .replace() regex.
I know that this answer is a little bit late, but here it goes =)
You can do exactly the way you want to do. But for that, you need to implement a small trick.
by having this HTML
<input type="radio" name="sitechoice" value="www.websiteone.com">www.websiteone.com
<br />
<input type="radio" name="sitechoice" value="www.secondwebs.com">www.secondwebs.com
<p id="thing2"></p>
<textarea id="textarea">
<p id="thing"></p>
</textarea>
you can edit textarea content, as a DOM by implementing something like the function changeInnerText
$(document).ready(function () {
$("input").change(function () {
var website = $(this).val(); // Gets value of input
changeInnerText(website);
//$("#thing").html(website); // Changes
//$("#thing2").html(website); // Does not change
});
var changeInnerText = function(text) {
var v = $("#textarea").val();
var span = $("<span>");
span.html(v);
var obj = span.find("#thing")[0];
$(obj).html(text);
console.log(obj);
console.log(span.html());
$("#textarea").val(span.html());
}
});
As you can see, I just get the information from the textarea, I create a temporary variable span to place textarea's content. and then manipulate it as DOM.
Instead of attempting to insert the text into the <p> element, insert the text into <textarea> element and include the <p> tag. Something like this should do the trick:
Change:
$("#thing").html(website);
to:
$("textarea").html('<p id="thing">'+website+'</p>');
And here is a fiddle: http://jsfiddle.net/nR94s/
Heyo. This is my first stack overflow post because I am stumped and not finding many people who are trying to accomplish the same thing. I've tried using jquery .before(), .after(), and .wrap() to resolve this. I was initially using css :before and :after pseudo-elements, but as that won't work for legacy browsers, I've decided to use jquery.
I already have several forms on several pages with validation working. The error messages vary in length. We were using a static, one size background image on the default span element, so content was bleeding out on longer error messages. I built a flexible rounded corner series of nested divs to allow the error box to grow or shrink dynamically. The html I want to output is:
<div class="errorWrap">
<div class="errorTop"><span></span></div>
<div class="errorContent">
<span class="error">This is an error</span>
</div>
<div class="errorBottom"><span></span></div>
</div>
Here's an example of a solution I tried, but I'm still pretty new to javascript.
$('.error').before('<div class="errorWrap"><div class="errorTop"><span></span></div><div class="errorContent">');
$('.error').after('</div><div class="errorBottom"><span></span></div></div>');
Correct me if I'm wrong, but I think that I have the right idea with the jquery. But it's just kind of sitting there, not in any function being called. So I imagine that since the code isn't re-executing, it just doesn't show up. Is there an appropriate function to wrap this in? I'm certain I'm just not attacking this from the right direction. Any help is super appreciated.
the plugins "before" and "after" dont take html as string. you cannot start a div in one and close it in an other.
Either you take your current html and generate a new html string which you append where you want to or you use the "wrap" plugin http://api.jquery.com/wrap/
Using pure HTML
$(".error").html("<div class='beforeContent'>" + $(".error").html() + "</div>");
Using wrap (http://api.jquery.com/wrap/)
$(".error").wrap("<div class='beforeAndAfter'></div>");
If you want to show an error div after focus out of an input then you have to create it using html/wrap as Luke said and then you have to append it in ot the dom useing
$('.errorWrap').insertAfter('.focusedElement');
But there are other methods available to insert a new element like append/appendTo e.t.c,
I ended up fixing this problem on my own using jquery to create the div and it's nesting on pageload, the divs are generated with an error class that gives display:none. A custom errorPlacement function nests the error in the correct div. Then I used a custom validator highlight function to remove the class that hides the element. Then I used the unhighlight function to re-add the class to re-hide the div.
$(function() {
//Generate the elements and assign attributes
var errorWrap = document.createElement('div');
$(errorWrap).addClass('errorWrap hideError');
var errorTop = document.createElement('div');
$(errorTop).addClass('errorTop');
var topSpan = document.createElement('span');
var errorContent = document.createElement('div');
$(errorContent).addClass('errorContent');
var errorBottom = document.createElement('div');
$(errorBottom).addClass('errorBottom');
var bottomSpan = document.createElement('span');
//Place the elements directly after each dd element
$("dl > dd").append(errorWrap);
$("div.errorWrap").append(errorTop)
.append(errorContent)
.append(errorBottom);
$("div.errorTop").append(topSpan);
$("div.errorBottom").append(bottomSpan);
//Add custom validator defaults
$.validator.setDefaults({
errorPlacement: function(error, element) {
$(element).nextAll('.errorWrap').children('.errorContent').append(error);
},
highlight: function(element) {
$(element).nextAll('.errorWrap').removeClass('hideError');
},
unhighlight: function(element) {
$(element).nextAll('.errorWrap').addClass('hideError');
}
});
}
Although I'm sure this could have been done more shorthand, I really like this technique because I didn't have to update any of my pages that contained forms to get it to work. All of the nested divs are dynamically created by javascript, so I can include a global file to any page with forms and it will just work. Thanks for all who offered suggestions.