initial commit

1 files changed, 35 insertions, 0 deletions

diff --git a/node_modules/nanoid/async/index.js b/node_modules/nanoid/async/index.js
new file mode 100644
index 0000000..cec454a
--- /dev/null
+++ b/node_modules/nanoid/async/index.js
@@ -0,0 +1,35 @@
+import crypto from 'crypto'
+import { urlAlphabet } from '../url-alphabet/index.js'
+let random = bytes =>
+  new Promise((resolve, reject) => {
+    crypto.randomFill(Buffer.allocUnsafe(bytes), (err, buf) => {
+      if (err) {
+        reject(err)
+      } else {
+        resolve(buf)
+      }
+    })
+  })
+let customAlphabet = (alphabet, defaultSize = 21) => {
+  let mask = (2 << (31 - Math.clz32((alphabet.length - 1) | 1))) - 1
+  let step = Math.ceil((1.6 * mask * defaultSize) / alphabet.length)
+  let tick = (id, size = defaultSize) =>
+    random(step).then(bytes => {
+      let i = step
+      while (i--) {
+        id += alphabet[bytes[i] & mask] || ''
+        if (id.length >= size) return id
+      }
+      return tick(id, size)
+    })
+  return size => tick('', size)
+}
+let nanoid = (size = 21) =>
+  random((size |= 0)).then(bytes => {
+    let id = ''
+    while (size--) {
+      id += urlAlphabet[bytes[size] & 63]
+    }
+    return id
+  })
+export { nanoid, customAlphabet, random }