Filter
Filter( arrayOrSet, lambda )Description
The Filter function applies the
lambda function to each member of
arrayOrSet, which is an Array,
Page, or Set. The
return value matches the arrayOrSet type, and contains only those
elements for which the lambda function returns true.
Providing a lambda function which does not return a
Boolean results in an "invalid argument"
error. If a Page is passed, its decorated fields are preserved in the
result.
|
The run time of To work around this, you may specify a larger query timeout via the driver that you are using. |
Examples
The query below iterates over the array containing the values 1, 2,
3, executing the lambda function for each value. The lambda function
returns true if the Modulo 2 of the
value is 0, otherwise it returns false.
client.query(
q.Filter(
[1, 2, 3],
q.Lambda(
'i',
q.Equals(0, q.Modulo(q.Var('i'), 2)),
),
)
)
.then((ret) => console.log(ret))[ 2 ]Is this article helpful?
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