@elliemae/ds-wysiwygeditor/esm/components/colors.js

Ellie Mae - Dim Sum - WYSIWYG Editor

function sinToHex(i, size, phase) {
  var sin = Math.sin(Math.PI / size * 2 * i + phase);
  var int = Math.floor(sin * 127) + 128;
  var hex = int.toString(16);
  return hex.length === 1 ? "0".concat(hex) : hex;
}

function getRainbowColors() {
  var size = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 28;
  var colors = new Array(size).fill(undefined);
  return colors.map(function (color, idx) {
    var red = sinToHex(idx, size, 0 * Math.PI * 2 / 3); // 0   deg

    var blue = sinToHex(idx, size, 1 * Math.PI * 2 / 3); // 120 deg

    var green = sinToHex(idx, size, 2 * Math.PI * 2 / 3); // 240 deg

    color = "#".concat(red).concat(green).concat(blue);
    return color;
  });
}

export { getRainbowColors };
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