blokboard/ Open app
Docs/Examples

EXAMPLE 01 OF 16 · Starter

Your first message

Create a value and turn it into a greeting. A small first run with a result you can inspect immediately.

BrowserBeginnerVariablesExpressions

Before you begin#

  • Use the Browser runtime. No account, wallet, or connection is required.

WORKFLOW SNAPSHOT

Your first message

3 nodes

Interactive workflow preview loads here. Download the JSON to inspect it in the app.

Import creates an inactive copy. Set your own inputs and connections before running.

Opens as a new, inactive workflow. Review the nodes before running.

Walk through the workflow#

  1. Import a copy, then select the first Variable node. Change the name value from Builder to your own name if you like.
  2. Inspect the next Variable node. Its greeting uses Hello, {{name}}! to read the value from the previous step.
  3. Run once. Inspect the final node’s output: with the original values it is {"greeting":"Hello, Builder!"}.
  4. Change the name and run again to see how a fixed value and an expression work together.

Check your result#

The final output is {"greeting":"Hello, Builder!"}. The first Variable creates a value; the second reads it inside a sentence.

Make one change#

Change Builder to Ada. The next run should produce {"greeting":"Hello, Ada!"}. Then change the sentence while keeping {{name}} in place.

If it does not match#

Check that the variable is named name in both places and that the two nodes are connected in order. For a number, object, or array, an exact expression preserves the value’s type; embedding it in a sentence creates text. Read expressions next.