`ARRAY::CONTAIN` 1g 2024-01-04 laplante@plcb.ca GOWEB/ARRAY — Check Array Membership

title: “ARRAY::CONTAIN” version: “1g” date: 2024-01-04 author: “laplante@plcb.ca”

category: “GOWEB/ARRAY”

array::contain Check Array Membership

array::contain(array, expression[, error: variable, strict: bool, index: bool])

The contain function checks whether a given expression exists in an array.

strict (default: false)
If true, the element must be of the same type as the array elements.
If false, type coercion is allowed.
index (default: false)
If true, the function returns the first index of the element in the array.
If not found, returns -1.
If false, the function returns a boolean (true/false).
error
Variable to store an error if one occurs.

res={{
    contain([1,2,3], 1);
    contain([1,2,3], "1");
    contain([[1,2],2,3], 1);
    contain([[1,2],2,3], [1,2]);
}}.

Returns:

truetruefalsetrue

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