lib/measures.js
function measureLength (meter) {
  var m = meter.split('/').map(function (n) {
    return +n.trim()
  })
  return m[0] * (4 / m[1])
}
function measureLength (meter) {
  var m = meter.split('/').map(function (n) {
    return +n.trim()
  })
  return m[0] * (4 / m[1])
}
function measureLength ( meter ) { var m = meter . split ( '/' ) . map ( function ( n ) { return + n . trim ( ) } ) return m [ 0 ] * ( 4 / m [ 1 ] ) }
get the length of one measure
get the length of one measure