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lo - Lodash-style Go Library with Generics
A modern, Lodash-style Go library leveraging Go 1.18+ Generics to provide common utility functions for collections (map, filter, contains, find, etc.), simplifying data manipulation.
Go
Added on 2025年7月6日19,707
Stars884
ForksGo
LanguageProject Introduction
Summary
lo is a Go library offering a comprehensive suite of utility functions for common data manipulation tasks on slices and other collections, heavily inspired by JavaScript's Lodash. It utilizes Go's generics feature (Go 1.18+) to provide type-safe operations.
Problem Solved
Go's standard library often requires manual looping for common collection operations. This library provides concise, functional-style helpers using generics, reducing boilerplate and improving code readability compared to traditional imperative loops.
Core Features
Map
Apply a function to each element in a slice, returning a new slice with the results.
Filter
Create a new slice containing only elements that satisfy a testing function.
Contains
Check if a slice contains a specific value.
Find
Find the first element in a slice that satisfies a testing function.
Uniq
Remove duplicate values from a slice.
Tech Stack
Go
Generics (Go 1.18+)
Use Cases
lo is useful in any Go project where you need to perform common operations on slices or arrays in a more declarative, less verbose way.
Mapping Data Structures
Details
Transforming a slice of user structs into a slice of their names.
User Value
Write transformation logic concisely using `lo.Map` instead of a traditional for loop.
Filtering Collections
Details
Filtering a slice of products to find only those currently in stock.
User Value
Easily select elements based on a condition using `lo.Filter`.
Checking Element Existence
Details
Checking if a specific permission string exists within a slice of user permissions.
User Value
Quickly determine if an element is present using `lo.Contains` or `lo.Some`.
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