Multiple conditions in an if clause

Question

If I have an if statement that needs to meet these requirements:

if(cave > 0 && training > 0 && mobility > 0 && sleep > 0)
         


        

Answer 1

Filter it with lodash:

var data = [cave, training, mobility, sleep];
var result = _.filter(data, function (datum) { return datum > 0; }).length === data.length;

console.log(result);

It iterates over array elements and returns new array composed of those elements that meet given requirement of being > 0 - if result array is different size than given one it means one or more of it's elements were not > 0.

I wrote it specifically to check every array value (even if not necessary as first > 0 could give same result) to not stop on first positive as you stated you want to check all of them.

PS You can reverse it to check for <= 0 and check for .length === 0 instaed to be faster.