reject() Function

Function

reject( predicate, list, context )

Calls a predicate for each item in a list, rejects any items for which the returned value is true, and returns all remaining items.

Parameters

Keyword Type Description

predicate

Function, Rule, or Data Type Constructor

Expression that returns a Boolean (true or false).

list

Any Type Array

List of elements that the predicate iterates through.

context

Any Type Array

Variable number of parameters passed directly into each function evaluation.

Returns

Any Type Array

Usage considerations

Referencing expressions and rules

Use fn!functionName to reference an expression function and rule!ruleName to reference a rule.

Limitations and alternatives

a!forEach() cannot be used within rules used in this function.

Examples

You can experiment with this function in the test box below.

Test Input

reject(fn!isnull, {1, null(), 3}) returns 1, 3

Open in Github Built: Fri, Nov 19, 2021 (11:59:11 AM)

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