uglify_config.json

{
	"compress": {
		"arrows": true,
		"booleans": true,
		"collapse_vars": true,
		"comparisons": true,
		"computed_props": false,
		"conditionals": true,
		"dead_code": true,
		"drop_console": false,
		"drop_debugger": true,
		"ecma": 6,
		"evaluate": true,
		"expression": false,
		"hoist_funs": true,
		"hoist_props": true,
		"hoist_vars": false,
		"if_return": true,
		"inline": true,
		"join_vars": true,
		"keep_classnames": false,
		"keep_fargs": true,
		"keep_fnames": false,
		"keep_infinity": false,
		"loops": true,
		"negate_iife": true,
		"passes": 1,
		"properties": true,
		"reduce_funcs": false,
		"reduce_vars": false,
		"sequences": true,
		"side_effects": true,
		"switches": true,
		"toplevel": false,
		"typeofs": true,
		"unsafe": false,
		"unsafe_arrows": false,
		"unsafe_comps": false,
		"unsafe_math": false,
		"unsafe_methods": false,
		"unsafe_proto": false,
		"unsafe_regexp": false,
		"unused": true,
		"warnings": false
	},
	"mangle": false
}