Why use it?

some useful calculation formula.

Live Demo

Installation

npm install lesca-number --save

Usage

As a Node module:

import {
  Pad,
  Uid,
  Dollar,
  CoverSize,
} from 'lesca-number';

for (var i = 0; i < 100; i++) {
  let img_url = `./${Pad(i, 4)}.png`;
  console.log(img_url); // => 0001.png ~ 0100.png
}

console.log(Uid(10)); // => c38c995b8d (random)
console.log(Dollar(93848421100)); // => 93,848,421,100
console.log(CoverSize({ width: 720, height: 420 }, { width: 1000, height: 1000 }));

Development

| method | description | default | | :-------------------------------------------------------------------------- | :----------------------------------: | ------: | | .Pad(num:int, max:int):string | the index of numbers | max = 4 | | .Uid(len:int):string | length of numbers | 10 | | .Dollar(num:int):string | 1130200 => 1,130,200 | | | .CoverSize(imageSize:object, containerSize:object):object | calculator cover size | |

Features

• maintain if necessary