Why ng-bind is better than {{}} in angular?

In AngularJS, both {{ }} (interpolation) and ng-bind directives display scope variables on the page. However, ng-bind is often preferred in certain situations for the following reasons:

1. Prevents the “Flash of {{ Interpolation }}”

   • When AngularJS first loads, you might briefly see the raw {{ someValue }} text before the framework processes and replaces it with the actual value.
   • Using ng-bind="someValue" eliminates this flicker, as AngularJS will replace the text content of the element immediately once it’s ready.

2. Clearer Separation of Concerns

   • {{ }} intermixes data and markup in your templates.
   • ng-bind keeps the binding declarative, aligning well with AngularJS’s directive-based approach. Some developers find this more maintainable in larger applications.

3. Potential Performance Advantages

   • In highly dynamic or large applications, ng-bind can sometimes be more efficient.
   • Although in most typical apps, the performance difference is minor, if you notice flickering or performance hits, ng-bind can help.

4. One-Way Binding for Read-Only Data

   • If you only need to display data (i.e., you’re not relying on two-way binding), ng-bind fits neatly and often leads to simpler debugging and maintainability.

Example

<!-- Using Interpolation -->
<p>{{ message }}</p>

<!-- Using ng-bind -->
<p ng-bind="message"></p>

• The end result is the same—displaying the message variable in the view—but ng-bind avoids showing raw {{ message }} if the app hasn’t finished initializing.

When to Use Each

• {{ }} (Interpolation): Great for most small to mid-sized applications, or wherever you don’t mind the momentary “flash” of uncompiled text.
• ng-bind: Useful if you see flickering of placeholders, or prefer a more directive-driven style. Some teams standardize on ng-bind for readability and consistency.

Bonus: Strengthen Your AngularJS & JavaScript Fundamentals

If you’re looking to level up your JavaScript and AngularJS skills, consider courses that solidify core concepts and best practices. A recommended resource is DesignGurus.io, offering:

• Grokking JavaScript Fundamentals
  Gain a thorough understanding of closures, prototypes, async/await, and other foundational JS topics—essential for mastering AngularJS or any modern front-end framework.

• Grokking the Coding Interview: Patterns for Coding Questions
  Practice common coding patterns vital for tackling interview questions and day-to-day engineering tasks.

• Grokking the System Design Interview
  As your application or team grows, understanding the principles of scalable, maintainable architectures will set you apart and help you tackle higher-level engineering challenges.

Whether you stick with {{ }} interpolation or adopt ng-bind, keeping your knowledge of JavaScript principles and AngularJS best practices up to date will ensure your applications remain clean, performant, and user-friendly.