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Apprentice

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Exam →Stats →Learning Path

Error

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Exercises (25)

○Error() — message property
Beginner
○Error() — instanceof Error
Beginner
○Error() — empty message
Beginner
○Error() — typeof is object
Beginner
○Error() — name is 'Error'
Beginner
○Error.message — basic message
Beginner
○Error.message — TypeError message
Beginner
○Error.message — empty message
Beginner
○Error.message — typeof is string
Beginner
○Error.message — RangeError message
Beginner
○Error.name — base Error is 'Error'
Beginner
○Error.name — TypeError is 'TypeError'
Beginner
○Error.name — RangeError is 'RangeError'
Beginner
○Error.name — SyntaxError is 'SyntaxError'
Beginner
○Error.name — ReferenceError is 'ReferenceError'
Beginner
○Error.toString() — 'Error: oops'
Beginner
○Error.toString() — TypeError
Beginner
○Error.toString() — empty message gives just name
Beginner
○Error.toString() — includes name and message
Beginner
○Error.toString() — typeof result is string
Beginner
○Error types — TypeError extends Error
Beginner
○Error types — RangeError extends Error
Beginner
○Error types — TypeError thrown on null property access
Intermediate
○Error types — RangeError on invalid array length
Intermediate
○Error types — EvalError name
Beginner