Initial import with skill sheet working

node_modules/@seald-io/nedb/browser-version/lib/customUtils.js

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+/**
+ * Utility functions that need to be reimplemented for each environment.
+ * This is the version for the browser & React-Native
+ * @module customUtilsBrowser
+ * @private
+ */
+
+/**
+ * Taken from the crypto-browserify module
+ * https://github.com/dominictarr/crypto-browserify
+ * NOTE: Math.random() does not guarantee "cryptographic quality" but we actually don't need it
+ * @param {number} size in bytes
+ * @return {Array<number>}
+ */
+const randomBytes = size => {
+  const bytes = new Array(size)
+
+  for (let i = 0, r; i < size; i++) {
+    if ((i & 0x03) === 0) r = Math.random() * 0x100000000
+    bytes[i] = r >>> ((i & 0x03) << 3) & 0xff
+  }
+
+  return bytes
+}
+
+/**
+ * Taken from the base64-js module
+ * https://github.com/beatgammit/base64-js/
+ * @param {Array} uint8
+ * @return {string}
+ */
+const byteArrayToBase64 = uint8 => {
+  const lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+  const extraBytes = uint8.length % 3 // if we have 1 byte left, pad 2 bytes
+  let output = ''
+  let temp
+
+  const tripletToBase64 = num => lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+
+  // go through the array every three bytes, we'll deal with trailing stuff later
+  for (let i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
+    temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+    output += tripletToBase64(temp)
+  }
+
+  // pad the end with zeros, but make sure to not forget the extra bytes
+  if (extraBytes === 1) {
+    temp = uint8[uint8.length - 1]
+    output += lookup[temp >> 2]
+    output += lookup[(temp << 4) & 0x3F]
+    output += '=='
+  } else if (extraBytes === 2) {
+    temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1])
+    output += lookup[temp >> 10]
+    output += lookup[(temp >> 4) & 0x3F]
+    output += lookup[(temp << 2) & 0x3F]
+    output += '='
+  }
+
+  return output
+}
+
+/**
+ * Return a random alphanumerical string of length len
+ * There is a very small probability (less than 1/1,000,000) for the length to be less than len
+ * (il the base64 conversion yields too many pluses and slashes) but
+ * that's not an issue here
+ * The probability of a collision is extremely small (need 3*10^12 documents to have one chance in a million of a collision)
+ * See http://en.wikipedia.org/wiki/Birthday_problem
+ * @param {number} len
+ * @return {string}
+ * @alias module:customUtilsNode.uid
+ */
+const uid = len => byteArrayToBase64(randomBytes(Math.ceil(Math.max(8, len * 2)))).replace(/[+/]/g, '').slice(0, len)
+
+module.exports.uid = uid