在 ng-click angular.js 中传递按钮 ID [英] pass button id in ng-click angular.js

问题描述

我需要在 Ionic 框架中传递按钮 ID.

这是我尝试过的.

在js代码中:

angular.module('todo', ['ionic']).controller('TodoCtrl', function($scope) {{$scope.showAlert = 函数(btnId){警报(btnId)；};}});

在 html 中:

点击我

O/P:未定义

或

点击我

O/P:未定义

或

点击我

O/P:未定义

或

点击我

O/P:未定义

或

点击我

O/P:btnId

在函数中直接写按钮id的方法正确吗?

我参考了一些答案，例如 this.所以我认为我在使用它时犯了一些错误.请让我知道我需要更改什么.

解决方案

哟，检查这个要点:

https://gist.github.com/lc-nyovchev/ed0a640a82a0f2dfd5a1

这是一种非常简单和天真的方法.

<button data-ng-attr-id="btnId" class="button button-light" data-ng-click="showAlert(btnId)">点击我

或者你可以在你的控制器中:

$scope.btnId = 'asd';

那么你就不需要 ng-init 块 div.

或者您可以在 ng-click 中获取 $event 的句柄，并获取其目标，然后获取其 id，但我不建议这样做，这不是有角度的做事方式:

点击我$scope.showAlert = 函数(事件){警报(事件.目标.ID)；}

I need to pass button id in Ionic Framework.

Here is what I have tried.

In js code:

angular.module('todo', ['ionic'])
.controller('TodoCtrl', function($scope) {
    {
        $scope.showAlert = function(btnId) {
            alert(btnId);
        };
    }
});

In html:

<button id="a" class="button button-light"  data="{{button.id}}" ng-click="showAlert(data.id)">
    Click Me
</button>

O/P: undefined

or

<button id="a" class="button button-light"  data="{{button.id}}" ng-click="showAlert(data)">
    Click Me
</button>

O/P: undefined

or

<button id="a" class="button button-light"  data="{{event.id}}" ng-click="showAlert(data.id)">
    Click Me
</button>

O/P: undefined

or

<button id="a" class="button button-light" ng-click="showAlert(this.id)">
    Click Me
</button>

O/P: undefined

or

<button id="btnId" class="button button-light" ng-click="showAlert('btnId')">
    Click Me
</button>

O/P: btnId

Is this correct way to directly write id of button in function?

I referred to a few answers like this. So I think I am making some mistake in using it. Please let me know what I need to change.

解决方案

Yo, check this gist:

https://gist.github.com/lc-nyovchev/ed0a640a82a0f2dfd5a1

That is a very easy and naive way to do it.

<div data-ng-init="btnId='asd';">
    <button data-ng-attr-id="btnId" class="button button-light" data-ng-click="showAlert(btnId)">
        Click Me
    </button>
</div>

Or you can have in your controller:

$scope.btnId = 'asd'; 

Then you don't need the ng-init block div.

Or you can get a handle to the $event in your ng-click, and get its target, and then get its id, but I wouldn't recommend that, it is not the angular way of doing things:

<button id="bla" class="button button-light" data-ng-click="showAlert($event)">
    Click Me
</button>


$scope.showAlert = function(event){
    alert(event.target.id);
}

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