在Yii 2中加载jQuery之类的核心脚本 [英] Loading core scripts such as jQuery in Yii 2

问题描述

我一直很难弄清楚如何在Yii 2中加载jQuery或其他CORE脚本.

I've been having a hard time trying to figure out how to load jQuery or other CORE scripts in Yii 2.

在Yii 1中，似乎是这样的:

<?php Yii::app()->clientScript->registerCoreScript("jquery"); ?>

在Yii 2中，$ app是Yii的属性，而不是方法，因此上面的方法自然不起作用，而是将其更改为:

In Yii 2, $app is a property of Yii, not a method, so the above naturally doesn't work, but changing it to:

<?php Yii::$app->clientScript->registerCoreScript("jquery"); ?>

产生此错误:

Getting unknown property: yii\web\Application::clientScript

我找不到关于Yii 2的有关加载核心脚本的任何文档，因此我尝试了以下操作:

I couldn't find any documentation for Yii 2 about loading core scripts, so I tried the below:

<?php $this->registerJsFile(Yii::$app->request->baseUrl . '/js/jquery.min.js', array('position' => $this::POS_HEAD), 'jquery'); ?>

虽然这会在头上加载jQuery，但Yii也会在需要时加载第二版jQuery，因此会导致冲突错误.

Whilst this loads jQuery in the head, a second version of jQuery is also loaded by Yii when needed and hence causes conflict errors.

此外，我不想使用Yii的jQuery实现，我希望保留自己的jQuery，因此这就是我这样做的原因.

Additionally, I don't want to use Yii's implementation of jQuery, I would prefer to maintain my own and hence that is why I am doing this.

我如何在需要时不加载Yii的重复副本的情况下加载jQuery和其他核心文件?

How can I load jQuery and other core files without Yii loading duplicate copies of them when it needs them?

推荐答案

要禁用Yii2的默认资产，您可以参考以下问题:

In order to disable Yii2's default assets you can refer to this question:

Yii2禁用Bootstrap Js，JQuery和CSS

Yii2 disable Bootstrap Js, JQuery and CSS

无论如何，Yii2的资产管理方式与Yii 1.x.x不同.首先，您需要创建一个AssetBundle.作为官方指南示例，请在``:

Anyway, Yii2's asset management way is different from Yii 1.x.x. First you need to create an AssetBundle. As official guide example, create an asset bundle like below in ``:

namespace app\assets\YourAssetBundleName;
use yii\web\AssetBundle;

class YourAssetBundleName extends AssetBundle 
{
public $basePath = '@webroot';
public $baseUrl = '@web';
public $css = [ 
    'path/file.css',//or files 
]; 
public $js=[
     'path/file.js' //or files
];

//if this asset depends on other assets you may populate below array
public $depends = [
];
}

然后，将其发布到您的视图中:

Then, to publish them on your views:

use app\assets\YourAssetBundleName;
YourAssetBundleName::register($this);

$this引用当前视图对象.

另一方面，如果您只需要将JS文件注册到视图中，则可以使用:

On the other hand, if you need to only register JS files into a view, you may use:

$this->registerJsFile('path/to/file.js');

yii \ web \ View :: registerJsFile()

如果只需要将CSS文件注册到视图中，则可以使用:

And if you need to only register CSS files into a view, you may use:

$this->registerCssFile('path/to/file.css');

yii \ web \ View :: registerCssFile()

这篇关于在Yii 2中加载jQuery之类的核心脚本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！