dojox/dtl/filter/integers.js

Dojo eXtensions, a rollup of many useful sub-projects and varying states of maturity – from very stable and robust, to alpha and experimental. See individual projects contain README files for details.

define([
	"dojo/_base/lang",
	"../_base"
], function(lang,dd){

	var integers = lang.getObject("filter.integers", true, dd);
	/*=====
	 integers = {
	 	// TODO: summary
	 };
	 =====*/

	lang.mixin(integers, {
		add: function(value, arg){
			value = parseInt(value, 10);
			arg = parseInt(arg, 10);
			return isNaN(arg) ? value : value + arg;
		},
		get_digit: function(value, arg){
			// summary:
			//		Given a whole number, returns the 1-based requested digit of it
			// desciprtion:
			//		1 is the right-most digit, 2 is the second-right-most digit, etc. Returns the
			//		original value for invalid input (if input or argument is not an integer,
			//		or if argument is less than 1). Otherwise, output is always an integer.
			value = parseInt(value, 10);
			arg = parseInt(arg, 10) - 1;
			if(arg >= 0){
				value += "";
				if(arg < value.length){
					value = parseInt(value.charAt(arg), 10);
				}else{
					value = 0;
				}
			}
			return (isNaN(value) ? 0 : value);
		}
	});

	return integers;
});