Logical error in javascript changing classNames

Question

This script contains logical error, where? It does only calculate avg. for first number, not second and so on...

window.onload = function() {
    var amountOfNumbers = 0;
    var total = 0;
    document.getElementById("uitkomst").innerHTML = "Er zijn nog geen cijfers ingevoerd";
    document.getElementById("cijfer").onblur = function() { 
        total = parseFloat(this.value);
        amountOfNumbers++;
        this.value = "";        
        document.getElementById("uitkomst").innerHTML = "Het gemiddelde van deze "+amountOfNumbers+" cijfers is "+(total/amountOfNumbers);
    }
};

Mike Cluck · Accepted Answer · 2016-03-08 21:02:23Z

3

You need to increment total rather than reset it.

total += parseFloat(this.value);
//    ^--- Add to the total

Without the + there, total will be equal to the current value, not the sum of all of the numbers.

answered Mar 8, 2016 at 21:02

Mike Cluck

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