mirror of
https://github.com/rjNemo/underscore
synced 2026-06-06 02:26:42 +00:00
4042208482
* add flatmap Signed-off-by: Ruidy <ruidy.nemausat@gmail.com> * add to readme Signed-off-by: Ruidy <ruidy.nemausat@gmail.com> Signed-off-by: Ruidy <ruidy.nemausat@gmail.com> Co-authored-by: Ruidy <ruidy.nemausat@gmail.com>
136 lines
3.7 KiB
Markdown
136 lines
3.7 KiB
Markdown
# _Underscore
|
|
|
|
|
|
[](https://pkg.go.dev/github.com/rjNemo/underscore)
|
|
|
|
|
|
|
|
|
|
|
|
`underscore` is a `Go` library providing useful functional programming helpers without extending any built-in objects.
|
|
|
|
It is mostly a port from the `underscore.js` library based on generics brought by `Go 1.18`.
|
|
|
|
## Usage
|
|
|
|
📚 Follow this link for the [documentation](https://underscore.onrender.com/).
|
|
|
|
Install the library using
|
|
|
|
```shell
|
|
go get github.com/rjNemo/underscore@0.4.0
|
|
```
|
|
|
|
Please check out the [examples](examples) to see how to use the library.
|
|
|
|
```go
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
u "github.com/rjNemo/underscore"
|
|
)
|
|
|
|
func main() {
|
|
numbers := []int{1, 2, 3, 4, 5, 6, 7, 8, 9}
|
|
// filter even numbers from the slice
|
|
evens := u.Filter(numbers, func(n int) bool { return n%2 == 0 })
|
|
// square every number in the slice
|
|
squares := u.Map(evens, func(n int) int { return n * n })
|
|
// reduce to the sum
|
|
res := u.Reduce(squares, func(n, acc int) int { return n + acc }, 0)
|
|
|
|
fmt.Println(res) // 120
|
|
}
|
|
```
|
|
|
|
## Getting Started
|
|
|
|
These instructions will get you a copy of the project up and running on your local machine for development and testing
|
|
purposes.
|
|
|
|
### Prerequisites
|
|
|
|
You need at least `go1.18` for development. The project is shipped with a [Dockerfile](Dockerfile) based on `go1.18`.
|
|
|
|
If you prefer local development, navigate to the [official
|
|
download page](https://go.dev/dl/) and install version `1.18` or beyond.
|
|
|
|
### Installing
|
|
|
|
First clone the repository
|
|
|
|
```shell
|
|
git clone https://github.com/rjNemo/underscore.git
|
|
```
|
|
|
|
Install dependencies
|
|
|
|
```shell
|
|
go mod download
|
|
```
|
|
|
|
And that's it.
|
|
|
|
## Tests
|
|
|
|
To run the unit tests, you can simply run:
|
|
|
|
```shell
|
|
make test
|
|
```
|
|
|
|
## Functions
|
|
|
|
`underscore` provides many of functions that support your favorite functional helpers
|
|
|
|
### Collections
|
|
|
|
- `All`
|
|
- `Any`
|
|
- `Contains` (only numerics values at the moment)
|
|
- `Each`
|
|
- `Filter`
|
|
- `Flatmap`
|
|
- `Find`
|
|
- `Map`
|
|
- `Max`
|
|
- `Min`
|
|
- `Partition`
|
|
- `Reduce`
|
|
|
|
### Pipe
|
|
|
|
Calling `NewPipe` will cause all future method calls to return wrapped values. When you've finished the computation,
|
|
call `Value` to retrieve the final value.
|
|
|
|
Methods not returning a slice such as `Reduce`, `All`, `Any`, will break the `Chain` and return `Value` instantly.
|
|
|
|
## Built With
|
|
|
|
- [Go](https://go.dev/) - Build fast, reliable, and efficient software at scale
|
|
|
|
## Contributing
|
|
|
|
Please read [CONTRIBUTING.md](CONTRIBUTING.md) for details on our code of conduct, and the process for submitting pull
|
|
requests to us.
|
|
|
|
## Versioning
|
|
|
|
We use [SemVer](http://semver.org/) for versioning. For the versions available, see
|
|
the [tags on this repository](https://github.com/rjNemo/underscore/tags).
|
|
|
|
## Authors
|
|
|
|
- **Ruidy** - _Initial work_ - [Ruidy](https://github.com/rjNemo)
|
|
|
|
See also the list of [contributors](https://github.com/rjNemo/underscore/contributors) who participated in this project.
|
|
|
|
## License
|
|
|
|
This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md) file for details
|
|
|
|
## Acknowledgments
|
|
|
|
This project is largely inspired by [Underscore.js](https://underscorejs.org/#) library. Check out the original project
|
|
if you don't already know it.
|