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

As others have suggested, you can use .every if you don't mind using ES6 or polyfills:

var hasAllStats = [cave, training, mobility, sleep]
  .every(function(stat) { return stat > 0; });

if (hasAllStats) { }

Alternatively, you can use .some to get the inverse (Also requires ES6 or polyfill):

var isMissingStats = [cave, training, mobility, sleep]
  .some(function(stat) { return stat <= 0; });

if (!isMissingStats) { }

If you don't want to use ES6, you can use reduce:

var hasAllStats = [cave, training, mobility, sleep]
  .reduce(function(hasAllStats, stat) {
    return hasAllStats && stat > 0;
  }, true);

if (hasAllStats) { }