What is the best way to eliminate the content of an element using javascript/typescript?

The progress bar I'm working with looks like this:

<progress class="progress is-small" value="20" max="100">20%</progress>

My goal is to use javascript to remove value="20", resulting in:

<progress class="progress is-small" max="100">20%</progress>

I want to achieve an indeterminate progress bar by clicking on another element, following the example provided at .

I attempted to achieve this using

document.getElementsByTagName("progress").val("");
but it did not work as expected.

Answer №1

To remove an attribute in HTML, you can use the removeAttribute function.

The documentation provides an example:

// Given: <div id="div1" align="left" width="200px">
document.getElementById("div1").removeAttribute("align");
// Now: <div id="div1" width="200px">

Code snippet

I have modified the code below to target all progress bars on the webpage:

const progressbars = document.getElementsByTagName('progress');
const button = document.getElementById('btn');

button.addEventListener('click', () => {
  for (let i = 0; i < progressbars.length; i++) {
    progressbars[i].removeAttribute('value');
  }
});
<progress id="bar1" value="20" max="100"></progress>
<progress id="bar2" value="20" max="100"></progress>
<progress id="bar3" value="20" max="100"></progress>
<progress id="bar4" value="20" max="100"></progress>
<button id="btn">Click Me</button>

Answer №2

Here is the solution you need.

Remove the 'value' attribute from elements with the tag name "progress".

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