Asked by: Hachim Obolensky
technology and computing web development

How do I use an external JavaScript in a lightning component?

32
Following steps are used to load the external Java Script library in lightning component.
  1. Load your external java script library in static resource. Goto >> SetUp>> Custom Code >> Static Resources.
  2. Use <ltng:require> tag to load the Java Script library in lightnig component as follows. <!-- For one js library --> <!--


Also to know is, what is a capability of the Itng require tag that is used for loading external JavaScript libraries in lightning components?

ltng:require enables you to load external CSS and JavaScript libraries after you upload them as static resources. Due to a quirk in the way $Resource is parsed in expressions, use the join operator to include multiple $Resource references in a single attribute.

Subsequently, question is, what is the use of the Aura method tag in lightning? aura method in lightning salesforce. Use aura:method to define a method as part of a component's API. This enables you to directly call a method in a component's client-side controller instead of firing and handling a component event.

Also, how is CDN used in lightning component?

To enable the CDN:

  1. From Setup, enter Session in the Quick Find box, and then select Session Settings.
  2. Select the checkbox for “Enable Content Delivery Network (CDN) for Lightning Component framework”.
  3. Click Save.

How do I use jQuery in Salesforce lightning?

Save the JS file on your computer.

  1. Step 2 : Upload Data Table zip file + jQuery js file as a static resources in your Salesforce org.
  2. Step 3 : Use jQuery Data Table on salesforce lightning component.
  3. Step 4 : Create Apex Controller.
  4. Step 5 : Create Lightning Component.

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What is @AuraEnabled?

The @AuraEnabled annotation enables client- and server-side access to an Apex controller method. You can cache method results only for methods that retrieve data but do not modify it. Using this annotation eliminates the need to call setStorable() in JavaScript code on every action that calls the Apex method.

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How do you call a parent's child method from lightning?

Define aura:id of the child component in parent. Define <aura:method> in child component and it will link to method of child controller. Define a lightning:button on parent component and on click of this button get the reference of the child component as mentioned in step 1 and call aura:method as mentioned in step 2.

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To create a component event in salesforce, navigate File -> New -> Lightning Event in developerconsole. Name the event, enter the description and click submit to create lightning event. The attribute type is the one that will differentiate Component event from Application event. The events can be fired from controller.

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$A.enqueueAction(action) adds the server-side controller action to the queue of actions to be executed. All actions that are enqueued will run at the end of the event loop.

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What is lightning data service in Salesforce?

Lightning Data Service is a centralized data caching framework which is used to load, save, create and delete a record without server-side apex code. It supports the sharing rules and field-level security as well.

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What is an aura component?

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What are lightning events used for?

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Can we use jQuery in lightning component?

Before you can use the jQuery library within your Lightning Component, you need to create a static resource for the JavaScript files. Static resources can be uploaded as a single file or a group of files in a ZIP folder. To upload a static resource go to Setup > Custom Code > Static Resources.

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How do I include Bootstrap in lightning component?

How can i use Bootstrap framework on my Lightning component?
  1. Step 1 : Download Bootstrap framework zip file.
  2. Step 2 : Download jQuery library.
  3. Step 3 : Upload zip file + jQuery file as a static resources in your Salesforce org.
  4. Step 4 : Use Bootstrap framework on lightning component.

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How do you include a script in lightning component?

3 Answers. You cannot include scripts with a script tag from a component. You can only include them with a script tag from the app. To reference a JavaScript library that you've uploaded as a static resource, use a <script> tag in your .

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What is a jQuery library?

jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers.

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3rd May, 2021

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