Tinkoff Utils

Fast, small and purely functional utility library

Install

$ npm install @tinkoff/utils

Features

• Fast
• Small
• Fully tested
• Documented
• Purely functional
• Modern codebase

Structure of the library

• /object – for objects
• /string – for strings
• /promise – for promises
• /array – for arrays or array-like objects
• /function – for functions – composition, currying and so on, also a set of simple functions (noop, T, F)
• /is – set of type checking methods
• / – root contains utilities which don't satisfy any of the above categories or are universal

Usage

1import pathOr from '@tinkoff/utils/object/pathOr';
2import compose from '@tinkoff/utils/function/compose';
3import toLower from '@tinkoff/utils/string/toLower';
4import map from '@tinkoff/utils/array/map'
5
6const toLowerName = compose(
7    toLower,
8    pathOr(['name'], '')
9);
10const result = map(toLowerName)([{name: 'testA'}, {name: 'testb'}])

Benchmarks

1$ npm run benchmark

Utility	Lodash	Ramda	Utils
clone	120,807 ops/sec	112,053 ops/sec	293,572 ops/sec
array/filter	2,080,728 ops/sec	1,849,633 ops/sec	2,046,113 ops/sec
is/empty	1,506,963 ops/sec	474,177 ops/sec	3,731,564 ops/sec
function/flip	7,528,745 ops/sec	3,735,143 ops/sec	3,490,207 ops/sec
object/path	12,023,128 ops/sec	8,894,639 ops/sec	7,587,076 ops/sec
string/trim	4,215,928 ops/sec	1,034,655 ops/sec	6,029,794 ops/sec

Browser support

• Chrome >= 40
• Firefox >= 52
• Edge >= 14
• IE >= 11
• Safari >= 10
• iOS >= 10
• Android >= 4.4

Node support

• 6.4.0 and higher

Bundle size

Library	Bundle size
import _ from 'lodash'	70.1 kb
import ... from 'lodash/...'	21.8 kb
import R from 'ramda'	41.3 kb
import ... from 'ramda/src/...'	10 kb
import ... from '@tinkoff/utils/...'	2.32 kb

For detailed comparison with specific libraries see COMPARE.md