欢迎访问 生活随笔!

生活随笔

当前位置: 首页 > 编程资源 > 编程问答 >内容正文

编程问答

Angular html property的值如何被更新的

发布时间:2023/12/19 编程问答 44 豆豆
生活随笔 收集整理的这篇文章主要介绍了 Angular html property的值如何被更新的 小编觉得挺不错的,现在分享给大家,帮大家做个参考.

html页面里有一个input element,通过语法[(ngModel)]双向绑定到model hero的name字段。

一旦往input field里输入新的值之后,触发core.js的refreshView方法,里面执行templateFn方法:

hero-detail.component.html对应一个方法:HeroDetailComponent_div_2_Template:


上图的方法负责更新element的property:

/*** @license* Copyright Google LLC All Rights Reserved.** Use of this source code is governed by an MIT-style license that can be* found in the LICENSE file at https://angular.io/license*/ /*** Update a property on a selected element.** Operates on the element selected by index via the {@link select} instruction.** If the property name also exists as an input property on one of the element's directives,* the component property will be set instead of the element property. This check must* be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled** @param propName Name of property. Because it is going to DOM, this is not subject to* renaming as part of minification.* @param value New value to write.* @param sanitizer An optional function used to sanitize the value.* @returns This function returns itself so that it may be chained* (e.g. `property('name', ctx.name)('title', ctx.title)`)** @codeGenApi*/

el是html的原生element,即input field:




要获取更多Jerry的原创文章,请关注公众号"汪子熙":

总结

以上是生活随笔为你收集整理的Angular html property的值如何被更新的的全部内容,希望文章能够帮你解决所遇到的问题。

如果觉得生活随笔网站内容还不错,欢迎将生活随笔推荐给好友。