kkovalev / inputMask

Simple input mask in 3 code lines

InputMask

<input
    type="text"
    pattern="[0-9]{0,10}"
    required
/>

input.addEventListener('input', function(){
    if(this.validity.patternMismatch) this.value = this.validValue || '';
    this.validValue = this.value;
});

Demo

https://seokirill.github.io/inputMask/