// Import required modules
const moment = require('moment');
const _ = require('lodash');
// Get the current date and time using Moment.js
const now = moment();
// Example array of numbers
const numbers = [1, 2, 3, 4, 5];
// Calculate the sum of the array using Lodash
const sum = _.sum(numbers);Date Manipulation and Sum Calculation
javascript
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Build a Custom Rate Limiter in Node.js with Redis
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Cheatsheet
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JavaScript Utility Libraries Cheatsheet
<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)=>4R.curry(fn)Returns a curried version of the provided function. R.curry((a, b) => a + b)(1)(2)=>3R.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.
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