function copyArray(dst, src) {
  if (!src) return;
  var dstLength = dst.length;
  for (var i = src.length - 1; i >= 0; --i) {
    dst[i+dstLength] = src[i];
  }
}
function copyArray(dst, src) {
  if (!src) return;
  var dstLength = dst.length;
  for (var i = src.length - 1; i >= 0; --i) {
    dst[i+dstLength] = src[i];
  }
}
function copyArray ( dst , src ) { if ( ! src ) return ; var dstLength = dst . length ; for ( var i = src . length - 1 ; i >= 0 ; -- i ) { dst [ i + dstLength ] = src [ i ] ; } }
Shallow-copies an array to the end of another array Basically Array.concat, but works with other non-array collections
Shallow - copies an array to the end of another array Basically Array . concat but works with other non - array collections
Copy an array of words to a destination array