About JS

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About JS

Select the truths about JavaScript. (Select all that apply) *

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Objects must be instantiated from classes

JavaScript is a dynamic language

JavaScript is prototype-based

JavaScript is multi-platform

JavaScript was invented by Rob Pike and Ken Thompson

JavaScript was created in 1995

Required

JavaScript was originally created by *

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Rob Pike and Ken Thompson

Brendan Eich

Rasmus Lerdorf

Lester Slovenski

Linus Tervolds

Select the truths about JavaScript. (Select all that apply) *

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JavaScript is a multi-paradigm language

JavaScript is case-insensitive

JavaScript uses unicode for strings

JavaScript variables must always hold values of the same type throughout the program

JavaScript can be used outside the browser with NodeJS

Required

True or False: Values in JavaScript can be implicitly coerced *

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True

False

Select the primitive types. (Select all that apply) *

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string

object

array

boolean

number

undefined

null

function

Required

True or False: Primitive types are mutable. *

1 point

True

False

True or False: Arrays in JavaScript always have a fixed length *

1 point

True

False

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