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LESSON 4.7

What a Lambda Remembers

A lambda captures nearby variable values when it is created. Changing a variable later does not change the value the lambda remembers.

Goal Predict what the program prints.

Write a Zirk program, then run it to see the world react.

Predict the program output 11 21 20

Your code

main.zirk

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Zirk

import { stdout } from std.io;

fn main(): Void {
    mut bonus = 10;
    inmut add_bonus = (n: Int32): Int32 => n + bonus;
    bonus = 20;
    stdout.println(add_bonus(1));
}

import { stdout } from std.io;

fn main(): Void {
    mut bonus = 10;
    inmut add_bonus = (n: Int32): Int32 => n + bonus;
    bonus = 20;
    stdout.println(add_bonus(1));
}

⌘ / Ctrl + Enter

Output

Your program output will appear here.

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