# UserCryptoManager.getRandomValues(Object object)

Start from base library version 2.17.3. Please remaining backward compatible.

with Promise style call: Supported

Mini Program plugin: Not supported

Obtaining cryptographically secure random numbers

# parameter

# Object object

attribute type Default values Required Introductions
length number yes Integer, number of bytes to generate random numbers, maximum 1048576
success function no Interface calls the successful callback function
fail function no Interface calls failed callback functions
complete function no Callback function at the end of an interface call (both successful and unsuccessful calls are executed)

# object.success callback

# parameter
# Object object
attribute type Introductions
randomValues ArrayBuffer Random number content, length is the number of bytes passed in

# sample code

  length: 6 // Generation 6 A random number of bytes in length,
  success: res => {
    console.log(wx.arrayBufferToBase64(res.randomValues)) // Convert to base64 Print after string