Detecting flex-wrap support in browsers

Question

I am working on a project in which I have a responsive grid which I have achieved using flex wrap property. Since I am supporting IE9 and lower versions of Firefox, version

Answer 1

I found that this is the simplest method:

var d = document.documentElement.style
if (('flexWrap' in d) || ('WebkitFlexWrap' in d) || ('msFlexWrap' in d)){
  alert('ok');
}

I tried hasOwnProperty too but it doesn't work in IE and FF. So why use 40 KB of modernizr when you can have just 3 lines of js ?