ng-model 和 ng-bind 有什么区别 [英] What's the difference between ng-model and ng-bind

问题描述

我目前正在学习 AngularJS，但很难理解 ng-bind 和 ng-model 之间的区别.

I'm currently learning AngularJS and am having difficulty understanding the difference between ng-bind and ng-model.

谁能告诉我它们有什么不同，什么时候应该使用一个?

Can anyone tell me how they differ and when one should be used over the other?

推荐答案

ng-bind 具有单向数据绑定($scope --> 视图).它有一个快捷方式 {{ val }}它显示了插入到 html 中的范围值 $scope.val，其中 val 是一个变量名.

ng-bind has one-way data binding ($scope --> view). It has a shortcut {{ val }} which displays the scope value $scope.val inserted into html where val is a variable name.

ng-model 旨在放置在表单元素内部并具有双向数据绑定($scope --> 视图和视图 --> $scope)例如.

ng-model is intended to be put inside of form elements and has two-way data binding ($scope --> view and view --> $scope) e.g. <input ng-model="val"/>.

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