📄 How to design user-friendly forms: Group fields
#guide
#guide
Sometimes, forms can be very long and complex so it’s best to have clusters of information that contain titles, subtitles, or even descriptions that can facilitate the user’s experience. By organising the information into blocks, the user can quickly connect each type of information.
With the main information located vertically, any additional information or instructions can be added to the left section. When adopting this method, make sure you leave space between each section so the user can easily tell which one it is.
#angular #cdk #directives #dynamic
Use Case
This method can be used when you need to manipulate the DOM directly, often in scenarios where you are working with non-Angular libraries or need to integrate with existing DOM elements that are not part of Angular’s template system.
Pros
— Direct control over the DOM.
— Can be useful for integrating with non-Angular libraries or existing scripts that manipulate the DOM directly.
Cons
— Bypasses Angular’s change detection and lifecycle hooks.
— Can lead to issues with Angular’s dependency injection and component lifecycle management.
— Harder to maintain and debug.
Performance Impact
Potentially high impact due to bypassing Angular’s optimized change detection. Direct DOM manipulation can also lead to performance issues if not handled properly.
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📄 How to design user-friendly forms: Write clear labels
#guide
#guide
The labels should be simple and easy to understand so that the user can quickly see what information to put in each field. Use simple labels to explain simple fields and add as few words as possible for each label. Here’s an easy example: use the “Full Name” label instead of “My name is”.
#settimeout #setinterval #event_loop #requestAnimationFrame
Why setTimeout is Inaccurate? ❌
setTimeout and setInterval in JavaScript are based on the event loop and task queue. Their execution time may vary due to several factors:
Event Loop Mechanism:
JavaScript executes code within a single event loop. If earlier tasks take a long time or the task queue is busy, the timer callback will be delayed.
Task Queue Priority:
The priority of tasks in the task queue varies. User interaction events or rendering updates might have higher priority than setTimeout and setInterval, delaying their execution.
JavaScript Engine Limitations:
The JS engine normally imposes a minimum delay; for example, nested setTimeout calls usually have a minimum delay of 4 milliseconds.
System Performance and Load:
System performance and current load can also affect timer accuracy. High system load can further delay task execution.
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#angular #ssr #guide
What is Server-Side Rendering (SSR) ?
SSR is the process of rendering web pages on the server instead of in the browser. With SSR, the Angular application sends fully rendered HTML from the server to the client, instead of a set of JavaScript files that the browser needs to process to build the page.
Benefits of SSR for SEO
1 — Fast Initial Load: Server-rendered pages load faster, providing a better user experience.
2 — Improved Indexing: Search engines can index server-rendered content more effectively than client-rendered content.
3 — Enhanced Link Sharing: Links shared on social media display rich and informative previews.
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#angular #animations #ui_element
Example explanation:
Triggers (trigger):
parentTrigger: Defines animations for the parent element.
childTrigger: Defines animations for the child elements.
States (state):
parentTrigger: Has the states start and end.
childTrigger: Has the states visible and hidden.
Styles (style):
Defines final and intermediate styles for different states and transitions.
Transitions (transition):
Defines how the animation should occur between states.
Animate (animate):
Defines the duration and timing function of the animations.
Keyframes (keyframes):|
Used in the transition from visible to hidden in the child elements to create detailed intermediate animations.
Group (group):
Used in the transition from start to end in parentTrigger to animate multiple properties in parallel.
Sequence (sequence):
Used in the transition from end to start in parentTrigger to animate multiple properties in sequence.
Query (query):
Used in the transition from hidden to visible in childTrigger to select and animate child elements.
Stagger (stagger):
Used with query to apply a delay between the animations of the child elements, creating a cascading effect.
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