cript-advanced-project-expense-tracker","title":"Project: an interactive expense tracker","prompt":"What does this program display?","answer":"10","explanation":"The module adds the numeric values.","context":"/* Starting HTML:\n

Expense tracker

\n\n

Ready

Total: 0.00

\n*/\n\n/* ./budget.js\nexport function totalExpenses(values) { return values.reduce((sum, value) => sum + value, 0); }\n*/\n\nimport { totalExpenses } from \"./budget.js\";\nconsole.log(totalExpenses([2, 3, 5]));","exercise":"lesson-choice","options":["5","10","235"]},{"kind":"lesson","id":"javascript-advanced-project-expense-tracker:question-2","lessonId":"javascript-advanced-project-expense-tracker","title":"Project: an interactive expense tracker","prompt":"What does this program display?","answer":"Invalid","explanation":"The amount is negative, so it fails validation.","context":"/* Starting HTML:\n

Expense tracker

\n\n

Ready

Total: 0.00

\n*/\n\n/* ./budget.js\nexport function totalExpenses(values) { return values.reduce((sum, value) => sum + value, 0); }\n*/\n\nconst value = \"-2\";\nconst amount = Number(value);\nconsole.log(value.trim() !== \"\" && Number.isFinite(amount) && amount > 0 ? \"Add\" : \"Invalid\");","exercise":"lesson-choice","options":["Add","Invalid","-2"]}],"lessonId":"javascript-advanced-project-expense-tracker","level":"advanced"}] 14:[["$","meta","0",{"name":"viewport","content":"width=device-width, initial-scale=1"}],["$","meta","1",{"name":"theme-color","content":"#0E7490"}],["$","meta","2",{"charSet":"utf-8"}],["$","title","3",{"children":"JavaScript: beginner to advanced"}],