Zerfo Utils

Fast, small and purely functional utility library

Install

npm
$ npm install @zerfo/utils

yarn
$ yarn add @zerfo/utils

Features

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

Functions of the library

• capitalize - Returns the capitalized version of a string.
• formatSum - Returns the formatted value.
• formatSum - Сhecks the userAgent of the user's browser and returns the platform used.
• isArray - Checks if test is array.
• isBoolean - Checks if test is boolean.
• isEmpty - Checks if test is empty.
• isEqual - Returns true if its arguments are equivalent, false otherwise.
• isFunction - Checks if test is function.
• isNil - Checks if test is nil (null or undefined).
• isNumber - Checks if test is number.
• isObject - Checks if test is object.
• isPalindrome - Checks if given str is a palindrome.
• isPromise - Checks if test is Promise.
• isShallowEqual - Returns true if its arguments are equivalent is shallow equal terms, false otherwise.
• isStrictEqual - Returns true if its arguments are equivalent is same value zero terms, false otherwise.
• isString - Checks if test is string.
• isUndefined - Checks if test is undefined.
• negate - Negates it is argument
• upperFirst - Converts the first character of string to upper case and returns the new string.

Benchmarks

$ npm run benchmark

Banchmark results

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 | Unpacked Size | | --- | --- | | lodash | 1.41 MB | | ramda | 1.17 MB | | @zerfo/utils | 35.5 kB |