Allow 2 decimal places in <input type="number">
Instead of step="any"
, which allows for any number of decimal places, use step=".01"
, which allows up to two decimal places.
More details in the spec: https://www.w3.org/TR/html/sec-forms.html#the-step-attribute
In case anyone is looking for a regex that allows only numbers with an optional 2 decimal places
^\d*(\.\d{0,2})?$
For an example, I have found solution below to be fairly reliable
HTML:
<input name="my_field" pattern="^\d*(\.\d{0,2})?$" />
JS / JQuery:
$(document).on('keydown', 'input[pattern]', function(e){
var input = $(this);
var oldVal = input.val();
var regex = new RegExp(input.attr('pattern'), 'g');
setTimeout(function(){
var newVal = input.val();
if(!regex.test(newVal)){
input.val(oldVal);
}
}, 1);
});