一. LDS 学习LDS以前可以先看一下aura中LDS的概念salesforce lightning零基础学习(六)Lightning Data Service(LDS)。针对LWC中的LDS和aura中的功能原理很像,区别可能是语法和标签的区别。所以这里对LDS不做过多的描述,直接展开标签的用法。 LWC 封装了3个最基础的组件去和数据进行交互。
1/*eslint-disable no-console*/2import { LightningElement, api } from 'lwc';3import { ShowToastEvent } from 'lightning/platformShowToastEvent';4exportdefaultclass RecordEditFormSample extends LightningElement {56@api recordId;7@api objectApiName;89handleSubmit(event) {10event.preventDefault();//...
在UVM中经常可以看到$cast的身影,这是SV的build-in task之一,当然它还有function的版本,这里不讨论。说到这,不得不提到“类型转换”这个术语,SV和很多其他语言一样,都支持特定类型间的相互转换。SV类型转换分两种方法,一种叫静态类型转换,另一种称之为动态类型转换。静态类型转换的语法类似为:int a = 2; real...
In following I am talking about the output of "console.log('record:', this.record);" from above. It misses some fields of the record. The setting: the fields and the value in those fields are on the record page, so they are filled and I have access My lwc component is visible on...
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Decorate a property or function with @wire and specify the wire adapter. Each wire adapter defines a data type. This code imports the Account.Name field and uses it in a wire adapter's configuration object. import { LightningElement, api, wire } from 'lwc'; import { getRecord } from...
In order to further investigate the airflow field, the motion of the air volume in the system chamber was in some cases modeled with a sinusoidal function [40]. Focusing on bidirectional axial flow impulse turbines, which are the subject of the present study, the first application of this ...