Convert 16 colors in CSS into RGB format

Annotations to the Dojo/_base/color module, source address Https://github.com/robinxiong/dojo/blob/master/_base/Color.js

function Fromhex (color) {/* Summary: Converts the CSS property value to the RGB-formatted alignment "#fff", 0xfff length For 4, a character occupancy represents an attribute, 0x10 = = 16 (2 of 4, 1 4 0) = = = 1 0000, then an F is 1111 placeholder for mask = 1111 for the post four bit (& to retain the four-bit value), others High clear 0 each traversal starts from the last four bits, so first get to B value, difficult to move 4 bit after getting to G, moving 4 bit, get to R get B property: 0000 1111 1111 1111 & 0000 0000 0000 1111 (only 16 bits are listed here, normal 32-bit) 0000 0000 0000 1111 B saved to variable c 0000 1111 1111 1111 >> 4, 0000 000          0 1111 1111 get g property 0000 0000 1111 1111 & 0000 0000 0000 1111 0000 0000 0000 1111 Get to G value, save to variable C         In the move four-bit, get R the value "FFFFFF", 0xffffff length is 8, every two characters represents a function 0xFF = 1111 1111 after each fetch 8 bits, just represents the color value */var t = {}, bits = (Color.length = = 4)? 4:8,//if it is shorthand, #fff, then bits is 4 bits, each one represents a property, the other 8 bits per two bits represent an attribute #ffffff00 mask = (1 << bits)-1; Represents a byte placeholder, moves left 4-bit or 8-bit, var a = (1 << 4)-1-10000-1, a.tostring(2); 1111, or 8-bit 1111 1111 color = number ("0x" + color.substr (1));        #ff0000 into 16-0xff0000;  if (IsNaN (color)) {return null;//color} ["B", "G", "R"].foreach (function (x) {var c =            Color & mask;            Color >>= bits; T[X] = bits = = 4? * C:C; 0xfff, an F should represent 255, which should be when [0-255], divided by 15 equal parts, each equal to 17 intervals.        So the obtained value needs to be multiplied by 17 to represent the value of 255 in RGB});        T.A = 1; Return t;//Color} console.log (Fromhex ("#00f"))//{r:0, g:0, b:255, a:1}

Convert 16 colors in CSS into RGB format