JavaScript自定义搜索功能无效

Question

嗨，我正在尝试为json数组创建自定义搜索

我的代码在chrome和firfox中运行良好，但在ie中没有。

代码的工作原理如下。 它遍历每个搜索词“ needle”，如果在问题中找到该词，则会将其添加到数组中。 如果它在同一问题中找到其他搜索词，则命中计数器将递增。

所有代码都在这里，可以运行。

我得到的错误是：

Line:24
Char:3
Error:qna_questions[..].q is null or not an object

qna_questions = [
{ 'q':'this is a very good question','id':'1'},
{ 'q':'i like pllo in the summer','id':'2'},
{ 'q':'it rains allot in the summer mushroom','id':'3'},
{ 'q':'i love people and straberry cake','id':'4'},
{ 'q':'i love people and berry rain','id':'5'},
{ 'q':'dsff sd fsd rains sdfsd fsd ','id':'6'},
{ 'q':'the dog is fat','id':'7'},
];

var search_result = new Array();
var needle = "dog fat summer allot mushroom";
var needle = needle.split(' ');
for(j = 0; j < qna_questions.length; j++) {

    for(i =0; i < needle.length; i++) {

        if(qna_questions[j].q.search(needle[i].toLowerCase()) != -1 ) {

            if( search_result[qna_questions[j].id] === undefined ) {
                search_result[qna_questions[j].id] = { 
                        'q':qna_questions[j].q,
                        'id':qna_questions[j].id,
                        'hits':0
                        };
            } else {
                search_result[qna_questions[j].id].hits++;


            }

        }
    }
}
search_result.sort(function(a,b) { return parseInt(b.hits) - parseInt(a.hits) } );
for (x in search_result)
  {
  alert(search_result[x].q + ": "+search_result[x].hits +"<br />");
  }

Answer 1

qna_questions = [ 
{ 'q':'this is a very good question','id':'1'}, 
{ 'q':'i like pllo in the summer','id':'2'}, 
{ 'q':'it rains allot in the summer mushroom','id':'3'}, 
{ 'q':'i love people and straberry cake','id':'4'}, 
{ 'q':'i love people and berry rain','id':'5'}, 
{ 'q':'dsff sd fsd rains sdfsd fsd ','id':'6'},
{ 'q':'the dog is fat','id':'7'}, 
]; 

注意qna_questions结尾处的额外逗号...在IE中将在数组末尾再一个空条目....删除逗号，你应该是好的。

qna_questions = [ 
{ 'q':'this is a very good question','id':'1'}, 
{ 'q':'i like pllo in the summer','id':'2'}, 
{ 'q':'it rains allot in the summer mushroom','id':'3'}, 
{ 'q':'i love people and straberry cake','id':'4'}, 
{ 'q':'i love people and berry rain','id':'5'}, 
{ 'q':'dsff sd fsd rains sdfsd fsd ','id':'6'},
{ 'q':'the dog is fat','id':'7'}
];