You can use console.table to display objects and arrays as a table. This can be a really handy way to visualize data, and we can use it in Salesforce Lightning Components (AURA/LWC) for debugging purpose. Here simple way to Debugging in Lightning Components (AURA/LWC) using Javascript Console Objects called console.table ()
Full Answer
How to create a lightning application in Salesforce?
To begin the code we need to log in to the Salesforce org in lightning experience mode and then click on the Gear icon on the right side top corner and click on developer console. Once the developer console opens, we first need to create a Lightning Application.
What is component bundle in Salesforce Lightning?
A lightning component bundle is comprised of following resources. A UI component which provides a user interface to interact with the system. An Apex controller if you are making a server call from the UI component. A client side controller and helper to interact with the component at client side.
What are the supported collection type values in Salesforce?
Here are the supported collection type values. An array of items of a defined type. To set a default value, surround comma-separated values with []; for example default=" ['red', 'green', 'blue']".
Why lightning attribute values are always equal to the present instance?
Analysed the root cause of this issue .Since lightning is two way binded with UI ,the new values are always equal to the present instance of attribute.
How do you display value in lightning component?
Use the lightning-output-field component in lightning-record-view-form to display the value of a record field on a Salesforce object. Use the field-name attribute to specify the API field name.
How do I display lightning components in salesforce?
From Setup, enter Tabs in the Quick Find box, then select Tabs. Click New in the Lightning Component Tabs related list. Select the Lightning component that you want to make available to users. Enter a label to display on the tab.
How do you display data from a list in LWC?
How to show List of Related Records using Search filter in LWCPress shift+ctrl+p.Select SFDX: Create Lightning Web Component Command from the command palette.Now give the file name that you want.Select default folder :- force-app\main\default/lwc.
How do you pass data from one component to another and display it in lightning?
Go to FILE then Lightning Event then give the name of Event that you want, now your Lightning Event will be created now use aura tag to define the event inside aura tag we have to use two attributes first is the name and the second one is type in the name we can use any name and in type, we have to specify the type of ...
Where we can display lightning components?
Answer: Lightning component can be displayed at following places:Lightning Experience.Salesforce1 App.Template-based Community.Standalone Lightning App.Visualforce Pages (Using Lightning out).
How do you preview Lightning Web components?
In your project, right-click your component folder and select SFDX: Preview Component Locally. In the Command Palette, enter preview component , and select SFDX: Preview Component Locally.
How do you fetch and display list records in lightning component?
To display a record using lightning:recordForm , provide the record ID and the object API name. Additionally, provide fields using either the fields or layoutType attribute. You can display a record in two modes using the mode attribute. Loads the form using output fields with inline editing enabled.
How do you iterate through an array in LWC?
To loop through List in LWC, we can make use of for:each and iterator:it. To use for:each, assign the Array to for:each and iterator variable to for:item. Then, we can use this iterator variable to access the elements in the Array. To use iterator:it, we just need to assign the Array to iterator:it.
How do you use lightning Datatable in LWC?
lightningDatatableLWCExample.js-meta.xml In above file, we are exposing lwc component for home page. Click Setup (Gear Icon) and select Edit Page. Under Custom Components, find your lightningDatatableLWCExample component and drag it on left hand side. Click Save and activate.
How do I send data from one component to another component in salesforce?
How to Pass Data From One Component to Another in Salesforce Lightning?First create an event named “Result. ... UserInput. ... Looking for Salesforce Lightning Services? ... Now create the client-side controller for UserInput.cmp.Now, we need to define the DisplayResult, which will display the result.More items...
How do you communicate one component to another component in salesforce lightning?
Let's start with creating the message channel so it's ready for the components to use.Create a Lightning Message Channel.Create the Publisher Component.Create the Subscriber Component.Add the New Components to the Event Comms App.Resources.
How do you pass data between two unrelated components in LWC?
Add the New Components to the Event Comms AppDeploy the lwc folder and then refresh the Event Comms app page.Open the Event Comms page for editing.Drag the remoteControl component to the right region of the page.Drag the counts component to the right region, just under the remoteControl component.More items...
What is the purpose of a lightning application?
We name this as testApp. The sole purpose of this lightning application is to test the lightning component we are going to create. We create lightning application because this is the only component which has a preview in the right side bar.
What is UI component?
A UI component which provides a user interface to interact with the system.
Which controller displays the list of contacts?
The client side controller which displays the list of contact, in this controller we have declared a method doInit. This method calls the method declared in Apex controller and sets the view tiem value of the contactList attribute at the run time as shown below.
Do you need a client side controller for a parent component?
Since this component will receive value of its attribute from the parent component, therefore we do not require any client side controller or server side controller for this component. Now we are going to create the parent component to hold and display the list of the contacts.
Does lightning design require CSS?
To include the lightning design system CSS for this application we need to extend our application with force:slds, this one line code will include the required css for the whole application.
Checking for Types
To determine a variable type, use typeof or a standard JavaScript method, such as Array .isArray () , instead. The instanceof operator is unreliable due to the potential presence of multiple windows or frames.
Setting List Items
There are several ways to set items in a list. To use a client-side controller, create an attribute of type List and set the items using component.set ().
Working with Map Items
To add a key and value pair to a map, use the syntax myMap [ 'myNewKey'] = myNewValue.