pass true, or a string in the format of "args[:values]", where args and values are comma-separated argument names and values, respectively, to embed the output in a big function with the configurable arguments and values.

Pass true to prevent discarding or mangling of class names. Pass a regular expression to only keep class names matching that regex.

pass true to work around Safari 10/11 bugs in loop scoping and await. See safari10 options in mangle and format for details.

Pass true to prevent discarding or mangling of function names

Set to true to support IE8

Use when minifying an ES6 module. "use strict" is implied and names can be mangled on the top scope. If compress or mangle is enabled then the toplevel option will be enabled.

set to true if you wish to enable top level variable and function name mangling and to drop unused variables and functions.