问题
An invalid numeric input in ME Edge entry just get appended,
<input type="number" placeholder="Enter Value" />
On entering non-numeric, or entering a minus appends with the placeholder text:
How this can be avoided?
回答1:
This is a known bug reported on the Edge issue tracker as "Incorrect behaviour of placeholder text in a text field 'number' when typing letters".
来源：https://stackoverflow.com/questions/41282429/html5-numeric-input-in-ms-edge-appends-the-placeholder-text