angularJs 之 ng-options 的用法：

 

angularjs之ng-option

ng-options一般有以下用法：

对于数组：

label for value in array
select as label for value in array
label group by group for value in array
label disable when disable for value in array
label group by group for value in array track by trackexpr
label disable when disable for value in array track by trackexpr
label for value in array | orderBy:orderexpr track by trackexpr(for including a filter with track by)

 

 

array / object： 数据源的类型，有数组和对象两种
value：迭代过程中，引用数组的项或者对象的属性值
key：迭代过程中，引用对象的属性名
label：选项显示的标签，用户可看到的
select：结果绑定到ngModel中，如果没有指定，则默认绑定value
group：group by的条件，表示按某条件进行分组
trackexpr：用于唯一确定数组中的迭代项的表达式

 

 

对于对象：
label for (key , value) in object
select as label for (key ,value) in object
label group by group for (key,value) in object
label disable when disable for (key, value) in object
select as label group by group for(key, value) in object
select as label disable when disable for (key, value) in object