Detect text overflow

// Determines if the passed element is overflowing its bounds,
// either vertically or horizontally.
// Will temporarily modify the "overflow" style to detect this
// if necessary.
function checkOverflow(el)
{
   var curOverflow = el.style.overflow;

   if ( !curOverflow || curOverflow === "visible" )
      el.style.overflow = "hidden";

   var isOverflowing = el.clientWidth < el.scrollWidth 
      || el.clientHeight < el.scrollHeight;

   el.style.overflow = curOverflow;

   return isOverflowing;
}

[].every(anyFunction) === true

 [].every(x=>x===2)  # true
 [].every(String)   #true

Ref:ecma-262-Array.prototype.every

reference:

Ref:determine-if-an-html-elements-content-overflows