Use const for bindings that are not reassigned and let for changing bindings. Strict equality compares without the coercion performed by loose equality.

Worked example

const courseCount = 12;
console.log(courseCount === '12'); // false

Put it into practice

Classify six values by type and explain why a numeric string differs from a number.

Check your understanding

• Explain the main idea in your own words.
• Compare your result with the worked example and identify any assumptions you made.
• Record one question or edge case to discuss with your instructor.

Connect this to your project

Build a searchable course explorer with loading and empty states, saved filters, and an accessible details panel.

Keep the output of this activity in your project folder. You will use it when you review and present your final work.