Tips for stopping default key input by utilizing the onEdit directive from primeng?

I need to make sure only positive numbers can be entered in an input field. I'm attempting to utilize the onEdit directive of the primeng datatable. Can anyone guide me on how to effectively use the event object to block negative values from being entered?

Answer №1

Similar Question

To restrict input to numbers only, use the input type number and set its minimum value to zero.

Next, add an event listener for key input on the number field and allow only numeric key presses.

Here's an example implementation:

// Get the input element.
var number = document.getElementById('number');

// Add an event listener for keydown on the number input.
number.onkeydown = function(e) {
    if(!((e.keyCode > 95 && e.keyCode < 106)
      || (e.keyCode > 47 && e.keyCode < 58) 
      || e.keyCode == 8)) {
        return false;
    }
}
  <input type="number" id="number" min="0" />

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