angular.js - Some parameters of angular's ng-option option.id as option.title The as in this is

Question

What does as mean in the following code?

ng-options="option.id as option.title for option in curOptionArray"

Answer 1

option.id means selected,
option.title means displayed,
as is for this purpose

Answer 2

It can be understood as an ng syntax option.id is the value submitted by select option.title is the value displayed by select option represents the current element in the array curOptionArray

Answer 3

Please refer to the official website:
https://docs.angularjs.org/api/ng/directive/ngOptions#!

There is an example:

$scope.items = [{
  id: 1,
  label: 'aLabel',
  subItem: { name: 'aSubItem' }
}, {
  id: 2,
  label: 'bLabel',
  subItem: { name: 'bSubItem' }
}];

<select ng-options="item as item.label for item in items track by item.id" ng-model="selected"></select>

Answer 4

You can check out Hacking with Angular: Playing with the ngOptions directive