js for calc

Author: scottshidlovsky

app/assets/javascripts/saving_calculator.js

@@ -0,0 +1,130 @@
+
+
+var formatMoney = function(n) {
+ var c = isNaN(c = Math.abs(c)) ? 2 : c, 
+ d = "." , 
+ t = t == undefined ? "," : t, 
+ s = n < 0 ? "-" : "", 
+ i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", 
+ j = (j = i.length) > 3 ? j % 3 : 0;
+ return '$' + s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
+ 
+}
+
+var formatCandidates = function(num) {
+ if (num == 1) {
+ return num + ' Candidate';
+ }
+ return num + " Candidates";
+}
+
+var formatMinutes = function(num) {
+ if (num == 1) {
+ return num + ' Minute';
+ }
+ return num + ' Minutes';
+}
+
+var updateScreeningCost = function(num_candidates, per_hour, time_per_candidate) {
+ var time_to_minutes = time_per_candidate / 60; //convert from minutes to hour
+ var total_cost = time_to_minutes * per_hour * num_candidates;
+ $('#total-screening-cost').html(formatMoney(total_cost) + ' / Month!');
+}
+
+
+$(document).ready(function() {
+ var per_hour = 40;
+ var time_per_candidate = 45;
+ var num_candidates = 20;
+ updateScreeningCost(num_candidates, per_hour, time_per_candidate);
+ $('#btn-minus_per-hour').click(function(e) {
+ e.preventDefault();
+ if( per_hour > 1) {
+ per_hour--;
+ }
+ $('#per-hour-input').val(formatMoney(per_hour));
+ updateScreeningCost(num_candidates, per_hour, time_per_candidate);
+ 
+ });
+ $('#btn-plus_per-hour').click(function(e) {
+ e.preventDefault();
+ per_hour++;
+ $('#per-hour-input').val(formatMoney(per_hour));
+ updateScreeningCost(num_candidates, per_hour, time_per_candidate);
+ 
+ });
+ 
+ $('#per-hour-input').change(function(e){
+ per_hour = parseFloat($(this).val());
+ $('#per-hour-input').val(formatMoney(per_hour));
+ updateScreeningCost(num_candidates, per_hour, time_per_candidate);
+ });
+ 
+ 
+ // number of candidates
+ $('#btn-minus_num_candidates').click(function(e){
+ e.preventDefault();
+ if (num_candidates > 1 ) {
+ num_candidates--;
+ }
+ $('#input_screenings').val(formatCandidates(num_candidates));
+ updateScreeningCost(num_candidates, per_hour, time_per_candidate);
+ });
+ 
+ $('#btn-plus_num_candidates').click(function(e){
+ e.preventDefault();
+ num_candidates++;
+ 
+ $('#input_screenings').val(formatCandidates(num_candidates));
+ updateScreeningCost(num_candidates, per_hour, time_per_candidate);
+ });
+ 
+ $('#input_screenings').change(function() {
+ num_candidates = parseInt($(this).val());
+ $('#input_screenings').val(formatCandidates(num_candidates)); 
+ updateScreeningCost(num_candidates, per_hour, time_per_candidate);
+ });
+ 
+ 
+ // Time per candidate 
+ $('#btn-minus_time_per_candidate').click(function(e){
+ e.preventDefault();
+ if (time_per_candidate > 1 ) {
+ time_per_candidate--;
+ }
+ $('#time-per-screening').val(formatMinutes(time_per_candidate));
+ updateScreeningCost(num_candidates, per_hour, time_per_candidate);
+ });
+ 
+ $('#btn-plus_time_per_candidate').click(function(e){
+ e.preventDefault();
+ time_per_candidate++;
+ 
+ $('#time-per-screening').val(formatMinutes(time_per_candidate));
+ updateScreeningCost(num_candidates, per_hour, time_per_candidate);
+ });
+ 
+ $('#time-per-screening').change(function() {
+ time_per_candidate = parseInt($(this).val());
+ $('#time-per-screening').val(formatMinutes(time_per_candidate));
+ updateScreeningCost(num_candidates, per_hour, time_per_candidate);
+ });
+});
+
+$(document).ready(function(){
+ $(".input-number").keydown(function (e) {
+ // Allow: backspace, delete, tab, escape, enter and .
+ if ($.inArray(e.keyCode, [46, 8, 9, 27, 13, 190]) !== -1 ||
+ // Allow: Ctrl+A
+ (e.keyCode == 65 && e.ctrlKey === true) || 
+ // Allow: home, end, left, right
+ (e.keyCode >= 35 && e.keyCode <= 39)) {
+ // let it happen, don't do anything
+ return;
+ }
+ // Ensure that it is a number and stop the keypress
+ if ((e.shiftKey || (e.keyCode < 48 || e.keyCode > 57)) && (e.keyCode < 96 || e.keyCode > 105)) {
+ e.preventDefault();
+ }
+ });
+});