@mckou/utils

Common JavaScript utility functions for Date, File, Number, String, Array, Object, Function, Browser and more.
Lightweight, TypeScript ready, and easy to use in both Vue and plain JS projects.

Table of Contents

• Installation
• Usage
  • Date Utils
  • File Utils
  • Number Utils
• License

Installation

npm install @mckou/utils

or

yarn add @mckou/utils

Usage

Date Utils

import { mDate } from '@mckou/utils'

const now = new Date()

// Format date
mDate.format(now, 'YYYY-MM-DD') // "2026-02-02"

// Add days
mDate.addDays(now, 7) // Date object 7 days later

// Calculate difference in days
mDate.diffDays('2026-02-02', '2026-02-10') // 8

File Utils

import { mFile } from '@mckou/utils'

// Download a file by URL
mFile.downloadByUrl('https://example.com/file.pdf', 'example.pdf')

// Download a file as Blob from API
mFile.downloadByBlob('/api/file/123', 'report.docx')

Number Utils

import { mNumber } from '@mckou/utils'

// Validate numbers. VueValidate 再方法后面追加Rule即可 mNumber.isIntGtZeroRule
mNumber.isIntGtZero(10) // true
mNumber.isIntGteZero(0) // true
mNumber.isInteger(-5) // true
mNumber.isNumberGteZero(0.5) // true
mNumber.isNumberInRange(5, 1, 10) // true
mNumber.isDecimalPlaces(3.14, 2) // true
mNumber.isPercent(99.99) // true