Question

以下代码在Chrome中有效但在IE中无效

NSDictionary *products=[jSONData valueForKey:@"products"];
NSDictionary *product=[products valueForKey:@"product"];
NSString *name=[product objectForKey:@"name"];

在try catch块中抛出无效参数的错误请建议解决方案

Answer 1

我认为问题是:checked selector，即not supported in IE8

  NSString *oauthParameters = authHeaders[@"X-Verify-Credentials-Authorization"];
                         NSString *urlString = authHeaders[@"X-Auth-Service-Provider"];
                         NSMutableURLRequest *request =
                         [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlString]];
                         request.allHTTPHeaderFields = @{@"Authorization":oauthParameters};
                         [request setHTTPMethod:@"GET"];
                         NSOperationQueue *queue = [[NSOperationQueue alloc]init];
                         [NSURLConnection sendAsynchronousRequest:request queue:queue completionHandler:^(NSURLResponse *response,NSData *data,NSError *error){
                              NSDictionary *twitterData = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:NULL];
                         }];

Answer 2

IE8中的document.querySelector只识别CSS 2.1选择器和非特殊标签（html5标签，如section或article）。为了避免这种情况，你可以使用像jQuery这样的库：http://jquery.com/

JavaScript queryselector方法在IE8中不起作用

2 个答案: