Add one value to the text box

Question

How do I add a value to a text box? For example, the amount? This is how I get an object from the DOM - what should I do?

$(this).parent("div").children("input").val();

This is the value of my textbox :)

+2

tarnfeld 03 oct. 09 at 13:43

2 answers

Using jQuery, also handling empty condition when there is no value

inp = $("#inputId");
var orgValue = parseInt(inp.val() == "" ? "0" : inp.val());
inp.val((orgValue == NaN ? 0 : orgValue) + 1);

+2

thr 03 oct. 09 at 13:45

Marius · Accepted Answer · 2009-10-03T13:45:51+0000

var elm = $(this).parent("div").children("input");
var val = elm.val();
val = Number(val) == NaN ? 0 : Number(val);
elm.val(val + 1);