如何从特定的键获取值 [英] How to get a value from specificed key
本文介绍了如何从特定的键获取值的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
var keys = ['name','age','gender'];
var input = {"document":
{"people":[
{"name":["Harry Potter"],"age":["18"],"gender":["Male"]},
{"name":["hermione granger"],"age":["18"],"gender":["Female"]},
]}
}
如何从特定键获取值.例如{Harry Potter, 18, Male}
?
How to get values from specific key. Example {Harry Potter, 18, Male}
?
推荐答案
您可以使用 选择 提取您感兴趣的属性:
You could use pick to extract the properties that you're interested in:
var people = _.map(input.document.people, function(person){
return _.flatten( _.values(_.pick(person, keys)));
});
angular.module('MyModule', [])
.controller('MyController', function($scope) {
var keys = ['name','age','gender'];
var input = {"document":
{"people":[
{"name":["Harry Potter"],"age":["18"],"gender":["Male"]},
{"name":["hermione granger"],"age":["18"],"gender":["Female"]}
]}
};
var people = _.map(input.document.people, function(person){
return _.flatten( _.values(_.pick(person, keys)));
});
$scope.people = people;
});
<script src="http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.7.0/underscore-min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app='MyModule' ng-controller='MyController'>
<p ng-repeat='person in people'>{{person | json}}</p>
</div>
这篇关于如何从特定的键获取值的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文