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How do you retrieve raw input from `` fields when users enter invalid text?

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Release: 2024-11-07 13:39:03
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How do you retrieve raw input from `` fields when users enter invalid text?

Retrieving Raw Input from Fields

In HTML5, the field provides enhanced input for numeric values. However, when users enter invalid text, retrieving the raw input can be challenging.

Limitations of Value Property

The value property of fields returns an empty string for non-numeric inputs in most modern browsers. This behavior aligns with the WHATWG's input number field sanitization algorithm, which sets the value to an empty string if the input is not a valid floating-point number.

Considerations for Non-Numeric Input Handling

If you want to capture non-numeric input, you cannot rely on the type="number" attribute. Instead, consider using a field and parsing the input yourself.

Bonus Reading

  • [jsFiddle of Input Types](https://jsfiddle.net/jacklmoore/d80DM/)
  • [Quirkmode.org Input Type Entry](https://www.quirksmode.org/html5/)

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