Question

这是我试图循环的json：

＆＃xA;＆＃xA;

  var json = {“series”：[＆＃xA; {＆＃XA; “ID”：1448822＆＃XA; “名”： “白金汉”，＆＃XA; “选择”：真，＆＃XA; “数据”：[＆＃XA; [＆＃XA; 19.23＆＃XA; 19.23＆＃XA; ]＆＃XA; ]＆＃XA; }，＆＃XA; {＆＃XA; “ID”：1448823＆＃XA; “名”： “剑桥”，＆＃XA; “选择”：假，＆＃XA; “数据”：[＆＃XA; [＆＃XA; 38.46＆＃XA; 61.54＆＃XA; ]＆＃XA; ]＆＃XA; }＆＃XA; }＆＃xA;

＆＃xA;＆＃xA;

我一直在努力研究如何使用以下代码中的值为true选择名称来获取数组位置：< / p>＆＃xA;＆＃xA;

  for（var i = 0; i＆lt; json.length; i ++）{＆＃xA; var geoAreaSelected = serData [i] .selected;＆＃xA; if（geoAreaSelected === true）{＆＃xA; this.series [I]。数据[I] .setState（ '选择'）;＆＃XA; }＆＃XA; };＆＃XA;

＆＃XA;

Answer 1

您必须迭代json.series而不是json

for (var i = 0; i < json.series.length; i++) {
  var geoAreaSelected = json.series[i].selected;
  if (geoAreaSelected === true) {
    json.series[i].data[i].setState('select');
    console.log(i); // <--- you can use the variable i to access ith object in the array
  }
};

Answer 2

修改

[ 19.23, 19.23 ]

控制台日志@interface ModalViewController (){ NSMutableArray *arrayToReturn; } @property (strong, nonatomic) IBOutlet UITextField *bookTextField; @property (strong, nonatomic) IBOutlet UITextField *pageTextField; @property (strong, nonatomic) IBOutlet customAddBookButton *doneButton; @end @implementation ModalViewController #pragma mark- textField Delegate -(BOOL)textFieldShouldReturn:(UITextField *)textField{ NSLog(@"textFieldShouldReturn"); if (textField == self.bookTextField) { [self.pageTextField becomeFirstResponder]; }else if (textField == self.pageTextField){ if ([self.bookTextField.text isEqual:@""]) { [self.bookTextField becomeFirstResponder]; }else { [self.pageTextField resignFirstResponder]; } } [arrayToReturn insertObject:self.bookTextField.text atIndex:0]; [arrayToReturn insertObject:self.pageTextField.text atIndex:1]; return YES; } #pragma mark- Done button action - (IBAction)Done:(id)sender { self.bookMetaReturnedfromModalView (arrayToReturn); NSLog(@"array is %@", arrayToReturn); [self dismissViewControllerAnimated:YES completion:nil]; } #pragma mark- viewDidLoad - (void)viewDidLoad { [super viewDidLoad]; [self.bookTextField becomeFirstResponder]; arrayToReturn = [[NSMutableArray alloc]init]; } @end

如何在javascript中获取名称值的数组编号

2 个答案: