# WriteBoolValue

Write bool value.

Last updated: 2026-09-09

Package: console | Status: source-declared

Tags: console, cpu, function, source-example, yeho

Write readable output, prompts, values, and diagnostics in a console application.

```yh
external WriteBoolValue(text key, bool value)
```


## Use WriteBoolValue

A complete small caller. Values are illustrative; check the returned result and package requirements before connecting live resources.

Verification: type checked

```yh
using console

// Write readable output, prompts, values, and diagnostics in a console application.
text key = "key"
bool value = true
WriteBoolValue(key, value)
Console.Log("WriteBoolValue completed")

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.console__writeboolvalue"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "console"
version = "0.1.0"
path = "../../../yeho/packages/console"

```

Extract the example archive beside the yeho and dolphin checkouts. This example requires those source dependencies and a current developer compiler.

```sh
./yeho/build/dolphin-metal/yehoc ./api-examples/console--WriteBoolValue/usage --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


Package presence and a declaration do not establish support on every host. Host services need their platform and lifecycle setup.

Source: yeho/packages/console/console.yh

AI training permission: https://demonhunterlabs.com/ai-use