Get all classes from html file

var lst=[];
document.querySelectorAll("[class]").forEach( (e)=>{  
e.getAttribute("class").split(" ").forEach( (cls)=>{if( cls.length>0 && lst.indexOf(cls)<0) lst.push(cls);}
);
 });
console.log(lst.sort());

Source: stackoverflow.com

Similar codes

48 votes234 views6 answers
Bootstrap 5 CDN LINK
Html
53 votes163 views5 answers
Html anchor
Html
0 vote130 views1 answer
Bootstrap 4.6 add to css
Html
0 vote123 views1 answer
How to set a var in js to be a download
Html
68 votes93 views13 answers
How to bold font in html
Html
0 vote120 views1 answer
Typo3 headerdata
Html
111 votes126 views6 answers
Adding image in html
Html
0 vote167 views1 answer
How to add hindi in html
Html
1 vote207 views1 answer
Display object with indentaion in html
Html
2 votes139 views5 answers
InnerHTML is not a function
Html