PART I
Warm-up
Reconnect with a useful idea before starting practice a complete welcome screen. In one or two sentences, describe the input, output or host boundary from the previous exercise that this lesson builds on. If you are arriving directly, skim the worked example first; there is no locked prerequisite.
A rough note is enough. You can revise it after the example.
PART II
Instruction & guided example
Plan the empty-or-unavailable welcome state
A welcome feature must remain understandable when a host prerequisite is absent. The source does not specify a mount failure result or recovery API, so the correct artifact is a clear behavior contract with an unresolved implementation field, not a guessed exception handler.
Use the normal heading Welcome to the workshop and target main. The sample case table has normal = target exists, host can present configured text; unavailable = target absent, no presentation success claim; desired user outcome = an understandable host-owned fallback; API status = unspecified. This separates what the script requests from what the product wants the host to do.
Inventing try/catch around mount would import JavaScript vocabulary and also assume an error signature absent from this source. WillowScript’s shared grammar includes try/recover, but the mere existence of those words does not establish the mount service’s failure types or recovery contract.
Worked reasoning and supplied artifact
import wuix.widget.button;
import wuix.layout;
domain Login {
const screen = {
layout: { type: "column", padding: [24,32], gap: 16 },
components: [{ type: "text", value: "Welcome to the workshop" }]
};
fnc show() -> void {
wuix.mount("main", screen);
}
}Illustrative example from the proposed WillowScript design. The language and WUIX/WMATH/WDB/WAUDIO/WTMP services are not implemented in the supplied source. This site has no interpreter, VM or native host and does not execute or certify the snippet.
Walk through the example, one line at a time
import wuix.widget.button;Name the external module this script asks to use. Importing a name does not supply a host resource or grant its capability permissions.
import wuix.layout;Name the external module this script asks to use. Importing a name does not supply a host resource or grant its capability permissions.
domain Login {Group related declarations under this named boundary. Read the nested declarations as the contents of that group.
const screen = {Name a value that this example keeps stable. Inspect the right-hand side for the value or configuration being bound.
layout: { type: "column", padding: [24,32], gap: 16 },Read this key/value within its containing object. State which parent owns it and the narrow visible behavior it configures.
components: [{ type: "text", value: "Welcome to the workshop" }]Read this key/value within its containing object. State which parent owns it and the narrow visible behavior it configures.
};Close the nested block or value begun earlier. Match it to its opening boundary to keep the structure readable.
fnc show() -> void {Read the function name, its parameter names/types and the result type after ->. This is the contract the body must satisfy.
wuix.mount("main", screen);Ask the supplied native UI service to mount the declared screen at the named host target. Confirm the target exists in the exercise contract.
}Close the nested block or value begun earlier. Match it to its opening boundary to keep the structure readable.
}Close the nested block or value begun earlier. Match it to its opening boundary to keep the structure readable.
Try the guided change
Fill the normal/unavailable table and mark which rows can be inspected on paper versus which need a supplied host.
- Write the supplied inputs and initial state before following the example.
- Reconstruct each intermediate calculation or host decision, then compare with the worked artifact.
- Explain why the contrasting alternative fails before attempting the changed inputs in Part IV.
PART III
Take a breather
Step back after the guided example. Look away from the screen, stretch, or reread your prediction. This is an optional learning pause, not a timer or an assessment gate.
When you return, try to name the lesson’s key idea without copying its wording. If that feels difficult, return to Part II and trace one line rather than restarting the entire lesson.
PART IV
Independent practice
Project context: Accessible welcome screen. Build a small, understandable change around practice a complete welcome screen.
Write an unavailable-target contract for a tournament-mod welcome screen. Include exact normal text, missing-resource condition, desired fallback and the host API questions that remain unresolved.
What to produce
A two-case contract table with no fabricated mount success, exception type or recovery method.
- State the intended behavior in a sentence before editing.
- Use only source-backed syntax and the host services whose contract you have been given.
- Record a normal case and a boundary or unavailable-resource case.
- Label hand predictions separately from anything actually measured in a supplied toolchain.
Syntax colors are a reading aid, not a compiler. The line you are editing stays uncolored until you move to a different line; capitalization is never changed. Drafts stay on this browser and code is not executed.
Need a hint?
Use the normal heading Welcome to the workshop and target main. The sample case table has normal = target exists, host can present configured text; unavailable = target absent, no presentation success claim; desired user outcome = an understandable host-owned fallback; API status = unspecified. This separates what the script requests from what the product wants the host to do.
Inventing try/catch around mount would import JavaScript vocabulary and also assume an error signature absent from this source. WillowScript’s shared grammar includes try/recover, but the mere existence of those words does not establish the mount service’s failure types or recovery contract.
Original learning-path task and reference
In a museum exhibit console, demonstrate practice a complete welcome screen. Add normal, boundary, and invalid-input cases and explain expected behavior. Include .ws source and a host-resource contract; compare at least one normal case and one edge case.
import wuix.widget.button;
import wuix.layout;
domain Login {
const screen = {
layout: { type: "column", padding: [24, 32], gap: 16 },
components: [{ type: "text", value: "Welcome back" }]
};
fnc show() -> void {
wuix.mount("main", screen);
}
}Where the original task needs a host API that is not supplied here, write the contract and predictions. Do not invent a runtime result.
PART V
Self-check
Use this check to notice what to revisit. It does not award a private course grade, block another page or claim to verify compiled code. Every answer has a learning explanation.
You may keep exploring even if you are unsure. Use the hint, compare the trace, and revise your explanation.
PART VI
Recap & small task
Bring the idea back to the mod feature you are building. A useful recap connects the mechanism to a decision you can make in your own code.
- Plan the empty-or-unavailable welcome state
- A welcome feature must remain understandable when a host prerequisite is absent. The source does not specify a mount failure result or recovery API, so the correct artifact is a clear behavior contract with an unresolved implementation field, not a guessed exception handler.
- Separate source-backed behavior, host requirements and untested predictions.
One small recap task
Write one question the native service must answer before recovery code can be authored.
This marks your personal practice record only. It is not a certification or an official workspace assessment.