Generate a random string of fixed length
YIDA provides a function to generate random codes: UUID() to generate a unique string.
Each time the form is opened, a random sequence is automatically generated. Such strings will never be repeated, but may not meet the needs of users. Some users need shorter random sequences, and UUID() can also be used. However, only pseudo-random can be achieved, and there is no guarantee that it will not be repeated. It should be thought that a part of this character is truncated as a new random sequence.
Make a 10-digit random sequence consisting of uppercase letters and numbers.
Functions used:
- RIGHT(A,B): Takes the rightmost B digit in string A.
- UPPER(A): converts lowercase characters in string A to uppercase
- UUID(): generates a unique string and assigns it to a single-line input box.
The final formula is:
{"text":"UPPER(RIGHT(UUID(),10))","marks":[],"isCmData":true}
Note: UUID() ensures that the output string will not be repeated, and does not guarantee that the part intercepted from this string will not be repeated. Therefore, users who need not to repeat the string, verify to remind users to refresh and obtain new strings.
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