Question

Having the toughest time writing in the function to hide numbers that are equal to or less than zero. Here is the function I want to write it in at:

function isItANumber() {
var increased = parseInt($("#increasedRevenueValue"));

if(isNaN(increased)) {
    $("#increasedRevenueValue").hide();
}

}

Any thoughts? Should I use OR?

EDIT: Here is the fiddle of my code http://jsfiddle.net/YVcj7/

Answer 1

Try the following, Im taking a guess at what element your using.

function isItANumber() {
    var increased = parseInt($("#increasedRevenueValue").text());

    if(isNaN(increased) || increased <= 0) {
        $("#increasedRevenueValue").hide();
    }
}
isItANumber();
​

Live Demo

And pure js.. because do we really need jQuery for this?

function isItANumber(el) {
    var increased = parseInt(el.innerText);

    if(isNaN(increased) || increased <= 0) {
        el.style.display = 'none';
    }
}
var element = document.getElementById("increasedRevenueValue");
isItANumber(element);

pure js demo
​