simple way to make a text field to accept numbers only with maximum number of length 13 digit and min 10
<input name="phoneNumber"
oninput="javascript: if (this.value.length > this.maxLength) this.value = this.value.slice(0, this.maxLength);"
type = "number"
maxlength = "10"
/>html input only 4 digits
<input type="text" name="pincode" maxlength="4" id="pin" pattern="^0[1-9]|[1-9]\d$" required/>Copyright © 2021 Codeinu
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