可以試試console.log，再不濟，alert。document.write在頁面加載完成后再去調(diào)用會失敗。

看了老師的代碼 發(fā)現(xiàn)不能直接比較json修改如下：可還是第一個case不過。。。。,可是又不知道用什么調(diào)試，求救！

function?arraysSimilar(arr1,?arr2){
????if?(!(arr1?instanceof?Array)?||?!(arr2?instanceof?Array))?{
????????????return?false;
????????}
????var?len1?=?arr1.length;
????var?len2?=?arr2.length;
????if(len1!==len2){
????????retrun?false;
????}
????else{
????????TYPES?=?['[object?String]',?'[object?Boolean]',?'[object?Number]',?'[object?Undefined]',?
????????????'[object?Null]',?'[object?Function]',?'[object?Date]',?'[object?Window]'];

????????function?test(arr){
????????????var?result?=?{}
????????????for(var?i=0;i<len1;i++){
????????????????var?type=Object.prototype.toString.apply(arr[i]);
????????????????if(type?in?result){
????????????????????result.type?+=?1;
????????????????}
????????????????else{
????????????????????result.type?=?1;
????????????????}
????????????}
????????????return?result;
????????}

????????var?result1=?test(arr1);
????????var?result2=?test(arr2);
????????for{var?i=0;?i<TYPES.length;?i++}{
????????????if(result1[TYPES[i]]?!==?result2[]){
????????????????return?false;
????????????}
????????}
????????return?true;
????}
}

老師能幫我看看么？