@sanity/form-builder/lib/inputs/arrays/common/randomKey.js

Sanity form builder

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = randomKey;
var _getRandomValues = _interopRequireDefault(require("get-random-values"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
// WHATWG crypto RNG - https://w3c.github.io/webcrypto/Overview.html
function whatwgRNG() {
  var length = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 16;
  var rnds8 = new Uint8Array(length);
  (0, _getRandomValues.default)(rnds8);
  return rnds8;
}
var getByteHexTable = (() => {
  var table;
  return () => {
    if (table) {
      return table;
    }
    table = [];
    for (var i = 0; i < 256; ++i) {
      table[i] = (i + 0x100).toString(16).substring(1);
    }
    return table;
  };
})();
function randomKey(length) {
  var table = getByteHexTable();
  return whatwgRNG(length).reduce((str, n) => str + table[n], '').slice(0, length);
}