'''array set''' ''arrayName list''

Sets the values of one or more elements in ''arrayName''. ''List'' must have a form like that returned by '''[array get]''', consisting of an even number of elements. Each odd-numbered element in ''list'' is treated as an element name within ''arrayName'', and the following element in ''list'' is used as a new value for that array element. If the variable ''arrayName'' does not already exist and ''list'' is empty, ''arrayName'' is created with an empty array value.

Note that if the array has existing elements,
''array set'' will '''append''' the new elements to the existing array.
The existing elements will not be removed.
In contrast, the normal [set] command will replace existing data.

For example,
''array set spam {}'' will not clear out the array variable ''spam''.
An alternative is [unset],
perhaps in the form: ''if {[info exists spam]} {unset spam}''.

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See also:

   * [array]
   * [array get]
   * [set]

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