Frontend

💬 In Plain Words: A Promise in JavaScript is simply an IOU for a value that hasn't arrived yet. When you call imperative Apex in LWC, Salesforce hands you this IOU. You can process it by chaining .then() and .catch() , or you can unwrap it elegantly using async and await inside a standard try/catch block. Both methods achieve the exact same thing, but await makes asynchronous code read like normal, top-to-bottom synchronous code.

💬 In Plain Words: Three decorators, three specific jobs. @api makes a property public so the parent component can control it. @track forces a re-render when you change data inside an object or array. @wire automatically pulls data from Salesforce and refreshes whenever its inputs change. Everything else is just a plain field—and remember, plain fields in modern LWC are already reactive!

In plain words: An Image Slider Carousel in LWC is an interactive UI component that displays a sequence of images or banners within a single contained space. Users navigate back and forth between slides using controls, while smooth CSS transforms shift the visible slide into view. Displaying rich media, product banners, or announcement graphics is a frequent requirement in custom Lightning apps, Experience Cloud portals, and dashboard homepages. While Salesforce offers the standard <lightning-carousel> base component, building a custom slider provides complete control over animation speed, transitions, custom navigation indicators, and responsive layouts.

In plain words: Adding icons to input and output fields in LWC gives users clear visual cues about what data a field expects or displays. While standard record forms follow default layouts, custom LWC markup lets you place Salesforce Lightning Design System (SLDS) utility icons directly inside field containers, labels, or alongside read-only output values. Standard Salesforce record page layouts do not always fit bespoke business requirements, such as custom search bars, multi-step wizards, or interactive calculation panels. Building custom form elements in Lightning Web Components (LWC) with integrated icons enhances visual hierarchy, speeds up data entry, and maintains full alignment with the Salesforce Lightning Design System (SLDS).

In plain words: Adding checkboxes and radio buttons to a custom DataTable in Lightning Web Components (LWC) allows users to select individual rows, toggle boolean column values, or make single-select choices directly inside a structured table. By configuring native datatable properties or custom column attributes, you can turn a static table into an interactive grid. Displaying data in a tabular format is a standard requirement in Salesforce applications. Often, users need to interact with table rows—such as selecting records for batch approval, toggling active states, or picking a single record from a list. The standard <lightning-datatable> component supports built-in row selection checkboxes out of the box, but rendering custom boolean toggles or radio selections requires specific column type attributes.