Val Guide

Val

Feature Overview

This feature infers variable types according to the context and make it final.

Prerequisite

None

Sweet Apex Example

public class ValDemo {
    public static void main() {
        val t = 'String';
        val size = t.length();
        val str = t.toString();

        val acc = new Account();

        String [] slist = { 'a' };
        val ref = slist;
    }
}

Transpiled Apex

public class ValDemo {
    public static void main() {
        final String t = 'String';
        final Integer size = t.length();
        final String str = t.toString();

        final Account acc = new Account();

        List slist = { 'a' };
        final List ref = slist;
    }
}

Usage

Refer to feature var for more details.

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