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I want to validate the form on our Magento 2.3 store instant. So when a value is added into the input field, it should validate this instant and add also a css class to the input field.

In that case we can add a validation check to the input, so the customer knows that the input is right.

How can we achieve that?

  • Use onkey up event and validate using jquery – Bhavin Shah Apr 8 at 19:52
  • @BhavinShah Thanks! Any idea how to achieve this? – Henk Z Apr 9 at 6:33

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