Optional Guide

Optional

Feature Overview

This feature generates a method with optional parameters.

Prerequisite

None

Sweet Apex Example

public class OptionalDemo {
    public static Integer add(Integer a, @optional Integer b, Integer c?) {
        b = b == null ? 0 : b;
        c = c == null ? 0 : c;

        return a + b + c;
    }
}

Transpiled Apex

public class OptionalDemo {
    public static Integer add(Integer a, Integer b, Integer c) {
        b = b == null ? 0 : b;
        c = c == null ? 0 : c;

        return a + b + c;
    }

    public static Integer add(Integer a, Integer b) {
        return add(a, b, null);
    }

    public static Integer add(Integer a) {
        return add(a, null);
    }
}

Usage

@optional can only be used as the rear parameters in a method.

Or you can append ? to the parameter name.

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