本文介绍了什么是angularjs主要使用transclusion的的处理方法,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

我在最近的指令遇到transclusion,什么是有这个概念的目的。据我所知,它的一个对象的封装,并有2路可能结合。但是,这可以通过在指令范围内使用属性=是可能的。有啥大不了的有关指令?

I have recently come across transclusion in directives, what is the purpose of having this concept. As far as I know its encapsulation of an object and have 2-way binding possibly. But this can be possible by using '=' in the scope attribute in directive. So whats the big deal about directive?

推荐答案


  • 要创建一个包装其他元素的指令。

  • 要多次复制相同transcluded内容。

  • 要重新克隆trancluded内容在事件发生时。


  • 当使用 transclude 选项,元素内容正在从在编译阶段的DOM中删除。

  • 链接阶段或$ transclude指令控制器内部的)是一个 $ transclude功能,它允许你克隆transcluded内容,它适用于范围并将其重新当你需要的DOM。

  • Angular.js有简单的情况下,一个内置的指令:

  • When using the transclude option, the element contents are being removed from the DOM during the compile phase.
  • The 5th argument of the linking phase ( or $transclude inside directive controllers ) is a $transclude function which allows you to clone the transcluded contents , apply it to a scope and reinsert it to the DOM when you need.
  • Angular.js has a built-in directive for simple cases: ngTransclude



  • Angular.js - Transclusion basics
  • Angular.js - Components and containers





  • ngIf
  • ngInclude
  • ngRepeat
  • ngSwitch

这是什么 transclude 选项吗?它使一个指令,使用此选项的内容有指令的外部,而不是内部访问范围。

其实,这就是不是那么准确,它仅适用于angular.js内置指令,当没有范围参数调用$ transclude功能的默认行为的默认行为。

Actually, that's not so accurate, it applies only to the default behavior of angular.js built-in directives and the default behavior of the $transclude function when invoked without scope argument.

在$ transclude功能允许你申请你需要作为一个可选的第一个参数的范围:

The $transclude function allows you to apply any scope you need as an optional first argument:

app.directive('example',function(){
  return {
    transclude: true,
    template: "<div>example</div>"
    link: function (scope, element, attrs, ctrl, $transclude){
      $transclude(scope, function(clone){
        element.append(clone);
      })
    }
  }
})

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10-27 19:02