为什么我们需要 ng-click? [英] Why do we need ng-click?

问题描述

Angular 应用使用 ng-click() 属性而不是 onclick 事件.

Angular apps use the ng-click() attribute rather than the the onclick event.

这是为什么?

推荐答案

ng-click 包含一个角度表达式.Angular 表达式在 Angular scope 的上下文中计算，它绑定到具有 ng-click 属性的元素或该元素的祖先.

ng-click holds an angular expression. Angular expressions are evaluated in the context of an Angular scope, which is bound to the element having the ng-click attribute or an ancestor of that element.

Angular 表达式语言不包含流控制语句，不能声明变量或定义函数.这些限制意味着模板只能访问控制器或指令提供的变量和运行函数.

The Angular expression language doesn't include flow control statements and can't declare variables or define functions. These limitations mean templates can only access variables and run functions made available by a controller or directive.

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