How to write a value from a text slider to a file

[cherault]

Dear all,

I am using a  slider to change an integer value.
My question is how to write this changed value to a text file in my computer ?

This is the code I use to change the value slider:

<form name="lightValues">
    <input type="range" name="lightInputName" id="lightInputId" value="1" min="1" max="20" onchange="getvalor(this.value);" oninput="lightOutputId.value = lightInputId.value">
    <input size="1" type="text" name="lightOutputName" id="lightOutputId"></input>
</form>

Thanks for your help and support.

Best regards,

[Ingolme]

It is not easy. You will need to install a server on your computer and then use a server-side programming language to write data to a file.