Learning Functional Javascript with Ramda

Learn functional JavaScript with Ramda, embracing pure, immutable functions. Build concise, point-free utilities using prop_equal, find, and either or both.

Explore composition in JavaScript and Ramda by chaining split, map to lower case, and join with dash using Ramda's compose to create a slug.

Learn how to safely access nested fields in objects using Ramda path and pathOr, handling missing or undefined data when fetching user profiles.

Explore how to use Ramda's converge to check if first element is the biggest by comparing it with the first of a sorted array, using head, sort, compose, and identity.

Learn to filter an array of products by category, count, and price using Ramda's where and compose to create a readable, point-free predicate.

Learn to use Ramda's ifElse and compose to read a video object and return the correct video file path by conditionally selecting quality and building the base path.

Explore Ramda's when and unless to build a declarative truncate function that limits a string to 10 characters and appends three dots, using take, compose, and data flow.

Learn how Ramda lenses enable immutable updates to a user object's name and surname using view, set, and over.

Explore Ramda's useWith and converge to apply multiple functions to a single input, with a point-free reducer example using flip, state, action, and payload.

Master Ramda's cutting methods to extract or remove elements from arrays or strings, using head, last, tail, take, takeLast, drop, and dropLast without mutating the data.

Explore grouping items in Ramda using groupBy, splitting students by score above or below 50 and by active status, producing true/false groups for streamlined categorization.

Sort arrays in Ramda with sort and comparators for ascending and descending order. Sort objects by name or age using identity or prop, and compose for lowercasing before sorting.

Explore predicates in Ramda by using all, any, and none to check if all users are active, at least one is active, or none are active, including role equals admin.

Learn how to debug compositions in Ramda by inserting console logs between steps, converting point-free code to named functions, and using tap to inspect intermediate results.

Practice applying functional programming in JavaScript with Ramda by exploring documentation, using Ramda in real projects, and running repository tests to understand functions and examples.