Compose text and button components — Build the smallest useful slice

PART I

Warm-up

Reconnect with a useful idea before starting compose text and button components. 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

Make the smallest action understandable

Text communicates state and a button requests an action. Their composition needs a semantic contract: label, event, target, permission, repeated action and failure response. Native controls do not remove those responsibilities. Callback values and object configuration are proposed source forms, not executed code here.

A single export action writes a report only after an explicit click. The host returns success or denied. The interface has space for a button label and status text, with no icon or tooltip service guaranteed.

Worked reasoning: Use Export report to name the requested action. Initial status Not exported changes to Exported only after confirmed success, or Export unavailable after denial. The label alone cannot prove the effect occurred.

Failed alternative: An unlabeled icon makes the action dependent on an unavailable tooltip and does not communicate the requested operation.

Worked reasoning and supplied artifact

Button:Export report
Initial status:Not exported
Click -> confirmed success ->Exported
Click ->denied ->Export unavailable
Required text remains meaningful without icons

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.

Try the guided change

Reconstruct the supplied worked case first: list its inputs, intermediate decisions and final artifact. Compare each row with the explanation and identify exactly where the rejected alternative fails. Then use the changed inputs in Part IV for independent work.

• 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: Operations dashboard. Build a small, understandable change around compose text and button components.

Specify a Save draft control with the same two host outcomes. Provide label and initial/success/denied statuses without relying on color.

What to produce

A minimal text/button specification and outcome-to-status table.

• 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.

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);
    }
}

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.

• Make the smallest action understandable
• Specify a Save draft control with the same two host outcomes. Provide label and initial/success/denied statuses without relying on color.
• Separate source-backed behavior, host requirements and untested predictions.

One small recap task

Tie success wording to confirmed host success.

This marks your personal practice record only. It is not a certification or an official workspace assessment.