SetValue

Sets a value in a structure.

Syntax

• SetValue(S, s, x)

  • S is a structure

  • s is a string

  • x is an object

• SetValue(S, i, x)

  • S is a structure

  • i is an integer

  • x is an object

Description

Let S be a structure and x any object. If s is the name of a member of S, then SetValue(S, s, x) returns S with the value of the member s set to x. If i is a valid index for a member in S, then SetValue(S, i, x) returns S with the value of the member with index i set to x.

Examples

struct("a": 3, "b": 10)

a: 3
b: 10

SetValue(ans, "b", 20)

a: 3
b: 20

Notes

This is a purely functional function. Typically, one uses the assignment operator to change a value in a structure lvalue:

S ≔ struct("a": 3, "b": 10)

a: 3
b: 10

S.b ≔ 20

20

S

a: 3
b: 20

See also

• AddMember

• RenameMember

• RemoveMember