30秒学会 JavaScript 片段 – RGB to object

Converts an rgb() color string to an object with the values of each color.

• Use String.prototype.match() to get an array of 3 string with the numeric values.
• Use Array.prototype.map() in combination with Number to convert them into an array of numeric values.
• Use array destructuring to store the values into named variables and create an appropriate object from them.

代码实现

const toRGBObject = rgbStr => {
  const [red, green, blue] = rgbStr.match(/\d+/g).map(Number);
  return { red, green, blue };
};

toRGBObject('rgb(255, 12, 0)'); // {red: 255, green: 12, blue: 0}

翻译自：https://www.30secondsofcode.org/js/s/to-rgb-object