[英]get values from array in angular 5
我想从数组中检索值我的代码就像
this.RoleServiceService.getRoleById(this.id).subscribe(data => {
this.roleData.push(data['data']);
console.log(this.roleData);
})
但我越来越像这样
我已经尝试过像role=roleData[0];
但是给不确定的你可以帮我吗
[]
0
:
Array(4)
0
:
{id: 5, name: "edit_page", guard_name: "api", created_at: "2018-03-30 10:09:38", updated_at: "2018-03-30 10:09:38", …}
1
:
{id: 6, name: "create_page", guard_name: "api", created_at: "2018-03-30 10:09:38", updated_at: "2018-03-30 10:09:38", …}
2
:
{id: 7, name: "create_post", guard_name: "api", created_at: "2018-04-06 11:11:40", updated_at: "2018-04-06 11:11:40", …}
3
:
{id: 8, name: "view_post", guard_name: "api", created_at: "2018-04-06 11:11:40", updated_at: "2018-04-06 11:11:40", …}
length
:
4
您必须接受this.roleData = data['data']
由于data['data']
返回一个array
,因此将数组推入第一个index
是错误的;
this.roleData = [];
this.RoleServiceService.getRoleById(this.id).subscribe(data => {
this.roleData = data['data'];
console.log(data['data']);
console.log(this.roleData);
})
如果要append the data
,也可以使用for loop
附加数据:
this.RoleServiceService.getRoleById(this.id).subscribe(data => {
data['data'].forEach(element => {
this.roleData.push(element)
});
console.log(data['data']);
console.log(this.roleData);
})
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