make an input only-numeric type on knockout

Question

i read many tutorials but i dont know how to do this, this is the input

input(type=\"text\",name=\"price\",id=\"price\"data-bind=\"text: price,valueUpdate:[\         


        

Answer 1

Best for today's scenerio https://github.com/Knockout-Contrib/Knockout-Validation

run the snippet below. entering a non digit or something more than 255 will cause the message to display.

function model() {
  var self = this;
  this.myObj = ko.observable().extend({ digit: true }).extend({ max: 255});
  }
  
  var mymodel = new model();

$(document).ready(function() {
  ko.validation.init();
  ko.applyBindings(mymodel);
});

enter a digit less than or equal to  255 


  Enter something other than a digit or over 255 will cause an error.

courtesy: Bryan Dellinger: https://stackoverflow.com/a/42940109/3868653