Separate every 3 digits in the integer portion of a number with underscores
Favor modifier if usage when you have a single-line body
Use && instead of and.
Redundant curly braces around a hash parameter.
bye bye hash rockets
Use 2 (not 4) spaces for indentation.
gg=G
space missing after ,
Surrounding space missing for operator '='.
Prefer single-quoted strings when you don't need string interpolation or special symbols.
trailing blank lines detected.
trailing whitespace