how to check if condition in lwc -- w3web.net

LWC Template if:true/false directive condition checked to render data through for:each and iterate list over Contact Object in lightning web component Salesforce lwc | how to handle multiple conditions template if:true to check against two values to iterate list object through for:each in Salesforce LWC

Hey guys, today in this post we are going to learn about How to use template if:true/false directive condition checked to render data through for:each and iterate list over Contact Object in lightning web component Salesforce LWC

To render HTML conditionally, add the if:true|false directive to a nested “template” tag that encloses the conditional content.

The if:true|false={property} directive binds data to the template and removes and inserts DOM elements based on whether the data is a truthy or falsy value. To know more details about Render DOM Elements Conditionally, Click Here.

 

Files we used to check condition Template if:true in Salesforce LWC →

lwcTrueFalseData.html LWc HTML File Template HTML file to check condition Template if:true in Salesforce Lightning Web Component (LWC)
lwcTrueFalseData.js LWC JavaScript File It’s hold @wire decorator to get list of Contact records.
lwcTrueFalseData.js-meta.xml XML Meta File It is used to where this lightning web component file you want to display as lightning__AppPage, lightning__RecordPage, lightning__HomePage.
lwcTrueFalseDataCtrl.cls Apex Controller It is used for retrieve list of records from Contact object using @wire decorator in Salesforce LWC.

 

Final Output →

template if else in lwc -- w3web.net

Other related post that would you like to learn in LWC

  • Find the below steps

Create Lightning Web Component HTML →

Step 1:- Create Lightning Web Component : lwcTrueFalseData.html

SFDX:Lightning Web Component >> New >> lwcTrueFalseData.html

lwcTrueFalseData.html [Lightning Web Component HTML]

Create Lightning Web Component JavaScript →

Step 2:- Create Lightning Web Component : lwcTrueFalseData.js

SFDX:Lightning Web Component >> New >> lwcTrueFalseData.js

lwcTrueFalseData.js [LWC JavaScript File]

Create Lightning Web Component Meta XML →

Step 3:- Create Lightning Web Component : lwcTrueFalseData.js-meta.xml

SFDX:Lightning Web Component >> New >> lwcTrueFalseData.js-meta.xml

lwcTrueFalseData.js-meta.xml [LWC Meta Data XML]

Create Apex Class Controller →

Step 4:- Create Apex Class : lwcTrueFalseDataCtrl.cls

From Developer Console >> File >> New >> Apex Class

lwcTrueFalseDataCtrl.cls [Apex Class Controller]

 

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how to check if condition in lwc -- w3web.net

 

FAQ (Frequently Asked Questions)

What are directives in LWC?

A directive is a special attribute that adds dynamic behavior to an HTML template. Use this directive to iterate over an array and render a list. Use this directive to access the current item.

What is iterator in LWC?

terator. If you want add special behavior to the first or last item in a list, use the iterator directive, iterator:iteratorName={array}. Use the iterator directive on a template tag.

Why do we use slots in LWC?

Slots in LWC are useful to make Lightning Web Component reusable and more flexible. It is also used to create a template in Lightning Web Component where we can create dynamic sections where the markup can be populated dynamically.

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