¿Por qué es falso de impresión/consola...????
function isWin(arr){ const conditions=[[1,2,3],[4,5,6],[7,8,9],[1,4,7],[2,5,8],[3,6,9],[1,5,9],[3,5,7]]; //wining constions arr=arr.sort(); let result=conditions.forEach((eachCondtions)=>{ console.log(eachCondtions===arr) //false }) isWin([4,5,6]);