JQuery: How to assign 'data-content' to equal contents of element

user_11475846 0
Viewed 41

Issue Background

I'm trying to add a popover to every element with class .param-value. I want to do this via JQuery to make it more DRY.

Issue

How can I make the data-content attribute equal to the content of the element?

For example

<p class="param-value" [...] data-content="Example Data 1">Example Data 1</p>

What I've tried

I have tried to use $(this).html() but as this is not an event handler I believe cannot pull this information.

HTML

<div class="param-row row">
    <div class="col-3"><p class="param-name">Example Label 1</p></div>
    <div class="col-3"><p class="param-value">Example Data 1</p></div>
    <div class="col-3"><p class="param-name">Example Label 2</p></div>
    <div class="col-3"><p class="param-value">Example Data 2</p></div>
</div>
<div class="param-row row">
    <div class="col-3"><p class="param-name">Example Label 3</p></div>
    <div class="col-3"><p class="param-value">Example Data 3</p></div>
    <div class="col-3"><p class="param-name">Example Label 4</p></div>
    <div class="col-3"><p class="param-value">Example Data 4</p></div>
</div>

JS

$(function () {
    $('[data-toggle="popover"]').popover({'trigger':'hover'})
})

$('.param-value').attr('data-container','body')
$('.param-value').attr('data-toggle','popover')
$('.param-value').attr('data-placement','bottom')
$('.param-value').attr('data-html','true')
$('.param-value').attr('data-content',$(this).html())

JSFIDDLE

https://jsfiddle.net/jx0csyLu/1/

css html jquery javascript
2 Answers

You can pass a function as a second parameter to the attr method and inside that function $(this) will be a reference to the current element and then you can just use $(this).html()

$(function() {
  $('[data-toggle="popover"]').popover({
    'trigger': 'hover'
  })
})

$('.param-value').attr('data-container', 'body')
$('.param-value').attr('data-toggle', 'popover')
$('.param-value').attr('data-placement', 'bottom')
$('.param-value').attr('data-html', 'true')
$('.param-value').attr('data-content', function() {
  return $(this).html()
})
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>

<div class="param-row row">
  <div class="col-3">
    <p class="param-name">Example Label 1</p>
  </div>
  <div class="col-3">
    <p class="param-value">Example Data 1</p>
  </div>
  <div class="col-3">
    <p class="param-name">Example Label 2</p>
  </div>
  <div class="col-3">
    <p class="param-value">Example Data 2</p>
  </div>
</div>
<div class="param-row row">
  <div class="col-3">
    <p class="param-name">Example Label 3</p>
  </div>
  <div class="col-3">
    <p class="param-value">Example Data 3</p>
  </div>
  <div class="col-3">
    <p class="param-name">Example Label 4</p>
  </div>
  <div class="col-3">
    <p class="param-value">Example Data 4</p>
  </div>
</div>

user_46207710

I was able to solve this with JQuery's each(). Like so:

$('.param-value').each(function() {
    $(this).attr('data-content',$(this).html())
})

If there is a more elegant solution, please let me know.

user_114758460
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