/**
 * @fileOverview
 * rgb & rgba & hexColor transfer
 * @author iNahoo
 * @since 2017/2/10.
 */
"use strict";

export const rgb2hex = (r, g, b)=> {
    return '#' + [r, g, b].map(v=>v.toString(16))
            .map(v=>v.length < 2 ? ('0' + v) : v)
            .join('');
};

export const hex2rgb = (c)=> {
    let [X,R,G,B]=c.match(/^#([\da-fA-F]{2})([\da-fA-F]{2})([\da-fA-F]{2})$/);
    return [R, G, B].map(v=>'0x' + v).map(Number);
};

export const hex2rgba = (c, a)=> {
    let [r,g,b] = hex2rgb(c);
    return 'rgba(' + [r, g, b, a].join(',') + ')';
};