What is a Promise in JavaScript?

A Promise is an object representing the eventual completion (or failure) of an asynchronous operation, allowing you to attach callbacks instead of relying on heavily nested code.

How do async and await work?

The 'async' keyword makes a function return a Promise. Inside that function, the 'await' keyword pauses execution until the Promise resolves, making asynchronous code look synchronous.

What is the Fetch API?

The Fetch API provides a modern, global interface for making asynchronous network requests (like getting data from an external server) and returns a Promise.

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TFJS Fundamentals in AI App Development

Learn about TFJS Fundamentals in this comprehensive AI App Development tutorial. Master the core concepts of TensorFlow.js. Learn the math behind tensors, the architecture of the Layers API, and the essential memory management patterns needed for high-performance browser ML.

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TFJS Hub

The core library.

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What is a 'Tensor'?

TensorFlow.js brings the power of the world's most popular ML library to the browser, allowing for seamless integration of AI into web apps.

1The Math of Tensors

Tensors are the language of AI. Whether it's an image (3D tensor), a sentence (2D tensor), or a single number (0D tensor), everything in TFJS is represented as a tensor. This allows the library to perform massive parallel calculations using the user's GPU, making complex AI tasks possible in the browser.

2Memory is Finite

Web browsers have strict memory limits. Tensors are stored in GPU memory, which isn't managed by the standard JavaScript Garbage Collector. Learning to use tf.tidy() and tensor.dispose() is the difference between a professional app and one that crashes the user's browser in minutes.