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Apprentice

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Exam →Stats →Learning Path

GlobalFunctions

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Exercises (40)

○parseInt — basic integer string
Beginner
○parseInt — binary radix
Beginner
○parseInt — hexadecimal radix
Beginner
○parseInt — truncates decimal
Beginner
○parseInt — non-numeric string returns NaN
Beginner
○parseFloat — basic float string
Beginner
○parseFloat — integer string
Beginner
○parseFloat — stops at non-numeric
Intermediate
○parseFloat — non-numeric string returns NaN
Beginner
○parseFloat — typeof result
Beginner
○isNaN — NaN input
Beginner
○isNaN — numeric input
Beginner
○isNaN — non-numeric string coerces to NaN
Intermediate
○isNaN — numeric string coerces to number
Intermediate
○isNaN — undefined coerces to NaN
Intermediate
○isFinite — finite number
Beginner
○isFinite — Infinity
Beginner
○isFinite — negative Infinity
Beginner
○isFinite — NaN
Beginner
○isFinite — numeric string coerces
Intermediate
○encodeURI — space encoding
Beginner
○encodeURI — URL with no encoding needed
Beginner
○encodeURI — ampersand not encoded
Intermediate
○encodeURI — returns a string
Beginner
○encodeURI — non-ASCII encoded
Intermediate
○decodeURI — decode space
Beginner
○decodeURI — unchanged URL
Beginner
○decodeURI — round-trip with encodeURI
Beginner
○decodeURI — returns a string
Beginner
○decodeURI — hex encoded ASCII
Intermediate
○encodeURIComponent — space encoding
Beginner
○encodeURIComponent — encodes & and =
Intermediate
○encodeURIComponent — encodes ?
Intermediate
○encodeURIComponent — returns a string
Beginner
○encodeURIComponent — round-trip with decodeURIComponent
Beginner
○decodeURIComponent — decode space
Beginner
○decodeURIComponent — decode & and =
Intermediate
○decodeURIComponent — decode ?
Intermediate
○decodeURIComponent — returns a string
Beginner
○decodeURIComponent — hex encoded ASCII
Intermediate