unprotect

Removes protection of a variable.

Syntax

• unprotect(X)

  • X is a variable

• unprotect(s)

  • s is a string containing the name of a variable

Description

If X is a variable (or a string containing the name of a variable), then unprotect(X) unprotects the variable. If successful, the function returns success.

When a variable is protected, its value cannot be changed and it cannot be deleted.

Examples

a ≔ 5

5

a ≔ 6

6

protect(a)

success

a ≔ 7

failure

Cannot modify or delete protected variable "a".

Call stack: assign

delete(a)

failure

Cannot modify or delete protected variable "a".

Call stack: delete

unprotect(a)

success

a ≔ 8

8

delete(a)

success

See also

• delete

• protect