lodash¶

Arrays, objects, and the boilerplate you were about to write by hand.

What is it?¶

lodash is a utility belt for JavaScript data. Filter arrays, pick object keys, group items, debounce functions, deep-clone nested structures — if you've written a for loop and thought "surely someone solved this," lodash probably did.

Access it as modules.lodash — the full lodash library.

How to use¶

Call methods directly on the lodash object:

let result = modules.lodash.filter([1, 2, 3, 4], n => n > 2)
// [3, 4]

No imports, no setup. Just modules.lodash.<method>().

Popular methods¶

Method	What it does
`filter(collection, predicate)`	Keep items matching a test
`map(collection, iteratee)`	Transform each item
`find(collection, predicate)`	First item matching a test
`groupBy(collection, key)`	Group items by a property
`sortBy(collection, key)`	Sort by property or function
`uniq(array)`	Remove duplicates
`pick(object, keys)`	Keep only listed keys
`omit(object, keys)`	Remove listed keys
`merge(target, source)`	Shallow merge objects
`cloneDeep(value)`	Deep clone
`get(object, path, default)`	Safe nested access (`"a.b.c"`)
`isEmpty(value)`	Check for empty array/object/string
`chunk(array, size)`	Split array into groups

This is a sampler, not the full menu — see lodash docs for everything else.

Try it¶

Filter active users from a list¶

Bot sends to chat. Data comes from db:

let users = db.bot.get("members") || []
let active = modules.lodash.filter(users, u => u.lastSeen > Date.now() - 86400000)

Bot.sendMessage(active.length + " users active in the last 24 hours.")

Group scores by team¶

params might not be involved here — this works on data you already have:

let scores = [
  { name: "Alice", team: "A", score: 90 },
  { name: "Bob", team: "B", score: 85 },
  { name: "Carol", team: "A", score: 95 }
]

let byTeam = modules.lodash.groupBy(scores, "team")
let summary = Object.entries(byTeam).map(([team, players]) =>
  team + ": " + players.map(p => p.name).join(", ")
).join("\n")

Bot.sendMessage("Teams:\n" + summary)

Safe nested read¶

let config = db.bot.get("config") || {}
let color = modules.lodash.get(config, "theme.color", "blue")

Bot.sendMessage("Theme color: " + color)

Notes¶

Sync — no await needed
Works with arrays, objects, strings, and collections
For deep-merging nested configs (not just cloning), see deepmerge
Official docs: lodash.com