flo-utils/es/randomColor.js

some utils

/**
 * @name randomColor
 * @link https://www.jianshu.com/p/54fc0fce46cc
 * @param {string} [type='16#'] (16#, rgba, 'hsla')
 * @param {number} [alpha=1] 透明度
 */
function randomColor() {
  var type = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '16#';
  var alpha = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;

  if (type === 'rgba') {
    var r = Math.floor(Math.random() * 255);
    var g = Math.floor(Math.random() * 255);
    var b = Math.floor(Math.random() * 255);
    return "rgba(".concat(r, ",").concat(g, ",").concat(b, ",").concat(alpha, ")");
  }

  if (type === '16#') {
    return "#".concat( // eslint-disable-next-line no-bitwise
    "00000".concat((Math.random() * 0x1000000 << 0).toString(16)).substr(-6));
  }

  if (type === 'hsla') {
    var colorAngle = Math.floor(Math.random() * 360);
    return "hsla(".concat(colorAngle, ",100%,50%,").concat(alpha, ")");
  }

  return '';
}

export default randomColor;