jquery how to empty input field

Question

I am in a mobile app and I use an input field in order user submit a number.

When I go back and return to the page that input field present the latest number input d

Answer 1

While submitting form use reset method on form. The reset() method resets the values of all elements in a form.

$('#form-id')[0].reset();

OR 

document.getElementById("form-id").reset();

https://developer.mozilla.org/en-US/docs/Web/API/HTMLFormElement/reset

$("#submit-button").on("click", function(){
       //code here
       $('#form-id')[0].reset();
});

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