Can querySelectorAll() be used with custom data attributes?

Answers:

• Yes, querySelectorAll() can be used with custom data attributes in JavaScript. Custom data attributes are attributes that start with data- and can be used to store additional information on HTML elements.

  To select elements based on these custom attributes, you can use attribute selectors in your querySelectorAll() calls. For example, if you have elements with a custom data attribute like data-custom, you can select them as follows:

  <div data-custom="value1"></div>
  <div data-custom="value2"></div>
  <div data-custom="value3"></div>
  

  You can use querySelectorAll() to select all elements with the data-custom attribute like this:

  const elements = document.querySelectorAll('[data-custom]');
  

  If you want to select elements with a specific value for the data-custom attribute, you can do it like this:

  const specificElements = document.querySelectorAll('[data-custom="value1"]');
  

  This will select all elements that have a data-custom attribute with the value value1.

  In summary, querySelectorAll() works seamlessly with custom data attributes, allowing you to select elements based on their data-* attributes using standard CSS selector syntax.

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