Want to create your own FNF mods? Here's a brief guide to get you started:
Most mods aren't built from scratch; they use "engines" hosted on GitHub that provide better optimization and modding tools: fnf mods github
// simple XSS protection function escapeHtml(str) return str.replace(/[&<>]/g, function(m) if (m === '&') return '&'; if (m === '<') return '<'; if (m === '>') return '>'; return m; ).replace(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g, function(c) return c; ); Want to create your own FNF mods