Extract a property value

    // extracts the floating number from an element's computed style property value

1.     
2.  let regex = /[+-]?\d+(\.\d+)?/g,
3.    
function getStyle(_element, _property){
4. 
   
5.         let style = window.getComputedStyle(_element, null);
6.         let prop = style.getPropertyValue(_property);
7.         let v = prop.match(regex)||[0];
8.          let val= v.map(function (v){return 1*v;});
9.         return 1*(val);
10.     }

msd