atlas-guide/viewmodels/utils/format.js

Atlas is living style-guides & pattern library static site generator with extensive CSS monitoring and components info that could be used virtually with any scss/css project

'use strict';

const d3fmt = require('d3-format');

function formatNumbers(number) {
    if (!number) {
        return 0;
    }
    const length = number.toString().length;

    if (length > 4) {
        return d3fmt.format('.2s')(number);
    } else {
        return d3fmt.format(',')(number);
    }
}

function formatBytes(bytes) {
    const fmt = d3fmt.format('.0f');

    if (bytes < 1024) {
        return fmt(bytes) + 'B';
    } else if (bytes < 1024 * 1024) {
        return fmt(bytes / 1024) + 'kB';
    } else if (bytes < 1024 * 1024 * 1024) {
        return fmt(bytes / 1024 / 1024) + 'MB';
    } else {
        return fmt(bytes / 1024 / 1024 / 1024) + 'GB';
    }
}

module.exports = {
    numbers: formatNumbers,
    bytes: formatBytes
};