Unchanging Dive Field

I'm having trouble understanding why this field isn't updating with the correct number. It seems that any value less than 1 is being rounded in the alert() function. I believe all numbers are simply getting rounded down, but I'm unsure of another method to retrieve the value without experiencing this issue. Any suggestions?

The current value is 0.03

var citrullineChoice = document.getElementById("citrulline").getElementsByClassName("on")[0].value;

alert returns 0

The current value is 0.03

var tyrosineChoice = document.getElementById("tyrosine").getElementsByClassName("on")[0].value;

alert returns 1

Link to Code Here

javascripthtmlcss

Answer №1

To prevent potential issues with data types, it is advised to utilize the parseFloat() method in JavaScript when working with number values.

var tyrosineChoice = parseFloat(document.getElementById("tyrosine").getElementsByClassName("on")[0].value);

Answer №2

Try using .textContent instead of .value since there are no input elements to target.

It appears that the jQuery library is missing from your code, resulting in a console error:

script.js:76 Uncaught ReferenceError: $ is not defined

This issue occurs on:

$("#totalCost").text("$" + totalCost);

Answer №3

Check out this solution for your issue: http://codepen.io/emiyake/pen/bwKRQP

The value is now being passed to the function instead of being directly added as an attribute to the element.

<li id="caffeinetwo" class="off" onclick="changeClass(this, 0.03)">250</li>

I've also made some adjustments to the changeClass function to make it more flexible for future modifications in your creation bar setup.

Answer №4

It is recommended to use .getAttribute('value') instead of .value

var citrullineChoice = parseFloat(document.getElementById("citrulline").getElementsByClassName("on")[0].getAttribute('value'));

Check out your codepen here

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