Applications expecting numeric values for the input is generally a pain for developers. Because we have to check given values whether they are number or alphabet. We have some text input element for html. We want to get the number of the person. How can we achieve that easily?
<input type="text" onkeypress='return event.charCode >= 48 && event.charCode <= 57'></input>
- onkeypress is the event will be triggered
- return will return code if the code is number which is between 48 and 57
Html5 provides natively input filtering for various types. Here is the for numbers.
At least keep in mind that to make things more secure server side filtering is a must. Do not values provided by the client side.