How to Retrieve the Raw Value of an `` Field?

Retrieving the Raw Value of an Field

When working with HTML5 input fields of type "number," it can be challenging to obtain the user's input as a raw string, as browsers typically sanitize the input and return an empty string if it is not a valid floating-point number.

According to the WHATWG specification, browsers are instructed to apply a value sanitization algorithm to number input fields, which involves setting the value attribute to an empty string if the input is invalid. This behavior is designed to prevent invalid numeric data from being submitted.

However, if you require the ability to capture non-numeric user input in a number field, you cannot rely on the sanitized value. Instead, you would need to use a regular text input field and implement your own validation logic to parse and handle the user's input.

The specifications from both the WHATWG and W3C emphasize that user agents should not allow users to set non-empty values that are not valid floating-point numbers to input fields of type "number."

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