Packages/slice/Filter

Node: arr.filter(fn)github.com/sahilkhaire/gox/slice

Filter

Overview

Keeps elements matching a predicate — same as Array.filter. Returns a new slice containing only matching items.

If you are coming from Node.js, the closest pattern is arr.filter(fn).

Signature

func Filter[T any](in []T, fn func(T) bool) []T

Compare: Node.js · Standard Go · gox

Node.js

const adults = users.filter(u => u.age >= 18);

Standard Go

var adults []User
for _, u := range users {
    if u.Age >= 18 {
        adults = append(adults, u)
    }
}

gox

import "github.com/sahilkhaire/gox/slice"

adults := slice.Filter(users, func(u User) bool { return u.Age >= 18 })

Example

import "github.com/sahilkhaire/gox/slice"

adults := slice.Filter(users, func(u User) bool { return u.Age >= 18 })

Tips

Combine with slice.Map for filter-then-map pipelines without nested loops.

Standard library alternative

Use the standard library directly:

var adults []User
for _, u := range users {
    if u.Age >= 18 {
        adults = append(adults, u)
    }
}

Related APIs

ChunkContainsEvery

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