Aabha · Learn by building

Exercise 01: Predict before reload

Work in a copy of examples/01. Do not edit the reference while following along.

A. Predict (fully guided)

Write the results of 2 + 3 * 4 and (2 + 3) * 4 before running them. Explain which operation happens first. Run both in your own local Console, then compare.

B. Repair (one clue)

Change console.log(siteName) to console.log(sitename). Read the first relevant error. Record its type and repair only the cause. Hint: names are case-sensitive.

C. Transfer (less guidance)

Create a new plain-text welcome.js beside your copied page. Make it log a fictional event title and the result of 18 minus 6. Change the page to load welcome.js. Submit the files and one sentence distinguishing a missing file from a JavaScript error.

Evidence

A saved source file, the predicted values and the observed Console output. Success: 14 and 20 for A, the original name restored for B, and your title plus 12 for C.

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