DeveloperBreeze

Javascript Programming Tutorials, Guides & Best Practices

Explore 93+ expertly crafted javascript tutorials, components, and code examples. Stay productive and build faster with proven implementation strategies and design patterns from DeveloperBreeze.

JavaScript Utility Libraries Cheatsheet

Cheatsheet August 21, 2024
javascript 

<table>
  <tr>
    <th>Function</th>
    <th>Description</th>
    <th>Example</th>
  </tr>
  <tr>
    <td><code>R.compose(...functions)
    Composes functions from right to left.
    R.compose(Math.abs, R.add(1))(-5) => 4
  
  
    R.curry(fn)
    Returns a curried version of the provided function.
    R.curry((a, b) => a + b)(1)(2) => 3
  
  
    R.filter(predicate, list)
    Returns a new list containing only the elements that satisfy the predicate.
    R.filter(x => x % 2 === 0, [1, 2, 3, 4]) => [2, 4]
  
  
    R.map(fn, list)
    Applies the function to each element of the list.
    R.map(x => x * 2, [1, 2, 3]) => [2, 4, 6]
  
  
    R.reduce(reducer, initialValue, list)
    Reduces the list to a single value using the reducer function.
    R.reduce(R.add, 0, [1, 2, 3]) => 6

Date-fns is a modern JavaScript date utility library that provides over 200 functions for manipulating dates without modifying native JavaScript objects.

Read More