https://www.createcu.org/wp-content/themes/lsg-child/js/calculators/calculator-utilities.js

1
2var calc_utilities = {
3    format_currency: function (num) {
4        num = Math.round(num * 100) / 100;
5        return num;
6    },
7
8    format_percentage: function (num) {
9        num = num * 100;
10        return num;
11    },
12
13    format_pct2decimal: function (num) {
14        num = num.replace(/\%/, '');
15        return num / 100;
16    },
17
18    validate_input: function (elem, options) {
19        var inputvalue = elem.trim();
20        inputvalue = inputvalue.replace(/\$|,|\%/g, "");
21        if (typeof options.maxNum !== 'undefined' && parseInt(inputvalue) > options.maxNum) {
22            inputvalue = options.maxNum;
23        }
24        if (typeof options.minNum !== 'undefined' && parseInt(inputvalue) < options.minNum) {
25            inputvalue = options.minNum;
26        }
27        return this.process_input(inputvalue, options);
28    },
29
30    process_input: function (num, options) {
31        "use strict";
32        var sign, decimals, dec_precision = 0, missingdecplaces = 0, retVal, n, i;
33        var num = num.toString().replace(/\$|\,|\%/g, '');
34        options = (typeof options !== 'undefined') ? options : {};
35        dec_precision = (typeof options.precision !== 'undefined') ? options.precision : dec_precision;
36        if (isNaN(num)) {
37            num = "0.00";
38        }
39        sign = (num == (num = Math.abs(num)));
40        num = Math.floor(num * Math.pow(10, dec_precision) + 0.50000000001);
41        decimals = num % Math.pow(10, dec_precision);
42        decimals = (decimals == '0') ? "" : decimals;
43        num = Math.floor(num / Math.pow(10, dec_precision)).toString();
44        missingdecplaces = (dec_precision - decimals.toString().length);
45        for (n = 0; n < missingdecplaces; n++) {
46            decimals = "0" + decimals;
47        }
48        for (i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++) {
49            num = num.substring(0, num.length - (4 * i + 3)) + ',' + num.substring(num.length - (4 * i + 3));
50        }
51        retVal = num;
52        if (typeof options.showdollarsign !== 'undefined' && true === options.showdollarsign) {
53            retVal = '$' + retVal;
54        }
55        retVal = (((sign) ? '' : '-') + retVal + ((decimals > 0 || dec_precision > 0) ? '.' + decimals : ''));
56        if (typeof options.showprecentagesign !== 'undefined' && true === options.showprecentagesign) {
57            retVal = retVal + '%';
58        }
59        return retVal;
60    },
61
62    check_term: function (elem) {
63        var inputvalue = elem.trim();
64        inputvalue = inputvalue.replace(/\$|,|\%/g, "");
65        inputvalue = parseInt(inputvalue);
66        return this.sanitize_num(inputvalue);
67    },
68
69    sanitize_num: function (num) {
70        "use strict";
71        num = num.toString().replace(/\$|\,|\%/g, '');
72        if (isNaN(num)) {
73            num = 0;
74        }
75        return num;
76    },
77    
78    getChar: function (event) {
79        if (event.which === null) {
80            return String.fromCharCode(event.keyCode);
81        } else if (event.which !== 0 && event.charCode !== 0) {
82            return String.fromCharCode(event.which);
83        } else {
84            return null;
85        }
86    }
87};