Hi! NHNgodo!
{"ScriptPreparationCode":null,"TestCases":[{"Name":"Vanilla JS add class","Code":"let el = document.getElementById(\u0022nhngodo\u0022);\r\nel.classList.add(\u0027random-class\u0027);\r\nel.classList.remove(\u0027random-class\u0027);","IsDeferred":false},{"Name":"Jquery","Code":"let $el = $(\u0022#nhngodo\u0022);\r\n$el.addClass(\u0027random-class\u0027);\r\n$el.removeClass(\u0027random-class\u0027);","IsDeferred":false}]}