/TypeScript/Input digits only

Input digits only

Input digits only

<input type="text" 
       onkeyup="this.value=this.value.replace(/[^\d]/,'')">

0

Source: stackoverflow.com

Html input only 4 digits

<input type="text"  name="pincode" maxlength="4"  id="pin" pattern="^0[1-9]|[1-9]\d$" required/>

-1

Source: stackoverflow.com

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