The output path must be a directory; it will be created if it does not exist. Input formats are auto-detected per file. Unsupported formats and write-only inputs (e.g., SVG) are skipped with a warning ...
The toString() method can be used to convert an array into a string. It returs a result containing string and it will seperate the different elements in the array with commas. var group = ['one','two' ...