随机色值

一、RGB 随机色值

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实现

function randomColorRGB() {
  let r = (Math.random() * 256) >> 0;
  let g = (Math.random() * 256) >> 0;
  let b = (Math.random() * 256) >> 0;
  return `rgb(${r},${g},${b})`;
}

console.log(randomColorRGB());

二、十六进制色值

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实现

function randomColor16() {
  let r = ((Math.random() * 256) >> 0).toString(16);
  let g = ((Math.random() * 256) >> 0).toString(16);
  let b = ((Math.random() * 256) >> 0).toString(16);
  if (r.length < 2) {
    r = "0" + r;
  }
  if (g.length < 2) {
    g = "0" + g;
  }
  if (b.length < 2) {
    b = "0" + b;
  }
  return `#${r}${g}${b}`;
}