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Input Number name 属性
tryjsref_number_name2
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<!DOCTYPE html> <html> <body> <input type="number" id="myNumber" name="quantity"> <p>Click the buttons to display and/or change the value of the name attribute of the number field.</p> <button onclick="display()">Display name</button> <button onclick="change()">Change name</button> <script> function display() { let x = document.getElementById("myNumber").name; alert("The name of the number field is: " + x); } function change() { let x = document.getElementById("myNumber").name = "newNumberName"; alert ("The name was changed to: " + x); } </script> </body> </html>