https://github.com/jquery/globalize/issues/288

main.js

var Globalize = require( "globalize" );
Globalize.load( require( "./likelySubtags.json" ) );
Globalize.load( require( "./sv-numbers.json" ) );
var sv = Globalize( "sv" );

sv.formatNumber( 123456.78 ); // 123 456,78
sv.parseNumber( "123 456,78" ); // 123456.78. obs: copying pasting the above result.
sv.parseNumber( sv.formatNumber( 123456.78 ) ); // 123456.78

sv.parseNumber( "123 456,78" ); // NaN. obs: typing space myself.