Applying Math.min() to an empty list produces -Infinity instead of 0
forms, javascript
Solution
`Math.min()` with no arguments returns `Infinity`, which is what happens when you call `Math.min.apply(Math, prices)` with an empty `prices` array.
Why not just detect the presence of an `Infinity` minimum and reset it to zero?
// We get the lower one
var min = Math.min.apply(Math, prices);
// ** test for Infinity **
if(min == Infinity) { min = 0; }
// And substract it
total -= min;
Or make sure `prices` has at least one element:
// fill the empty array with a zero
if(prices.length == 0) prices.push(0);
// We get the lower one
var min = Math.min.apply(Math, prices);
Problem
I have developed a code in which adds values and at the end subtracts the smallest value based on the items you select in a form. The code works fine however the problem occurs when you unselect all the items and instead of displaying 0, it displays -Infinity. What do I do to this script to force it to display 0 instead of -Infinity? ``` // All selected prices are stored on a array var prices = []; // A function to remove a item from an array function remove(array, item) { for (var i = 0, len = array.length; i < len; i++) { if (array[i] == item) { array.splice(i, 1); return true; } } return false; } function calculateSectedDues(checkbox, amount) { // We add or remove the price as necesary if (checkbox.checked) { prices.push(amount); } else { remove(prices, amount); } // We sum all the prices var total = 0; for (var i = 0, len = prices.length; i < len; i++) total += prices[i]; // We get the lower one var min = Math.min.apply(Math, prices); // And substract it total -= min; // Please, don't access the DOM elements this way, use document.getElementById instead document.grad_enroll_form.total.value = total; } </script> ```