雖然通過了，但是是不是還不夠嚴謹?。?/h1>

function?arraysSimilar(arr1,?arr2)?{
??if?(!(arr1?instanceof?Array?&&?arr2?instanceof?Array))?{
????return?false;
??}
??if?(arr1.length?!==?arr2.length)?{
????return?false;
??}
??return?iterateArr(arr1)?===?iterateArr(arr2);
}

function?iterateArr(arr)?{
??return?arr.map(getType).sort().join("");
}

function?getType(data)?{
??if?(typeof?data?===?"object")?{
????return?Object.prototype.toString.call(data);
??}
??return?typeof?data;
}