Test

Quiz: TypeScript. Basic Types and Variable Declarations.

Usuario eliminado 5 preguntas Actualizado el 25 abr 2017

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Preguntas del test (5)

1Please select correct basic types that are available in TypeScript:
1. Anumber, null, binary, string, boolean
2. Bstring, boolean, enum, null, never
3. Cboolean, char, string, number
4. Dboolean, number, int, enum, void
2Please select correct TypeScript variable declarations. Choose all that apply.
1. Ax = "My String";
2. Blet z = "My String";
3. Clet a: string = "My String";
4. Dlet myAge: int = 25;
5. Elet c as string = "My String";
6. Flet b = ("My String" as string);
3let variable declaration is accessible anywhere within their containing function, module, namespace, or global scope.
1. AVerdadero
2. BFalso
4Please use drag and drop to make sure that variable sentence contains the following string: "Hello, my name is Joe Bloggs. I'm 44 years old."

let myName = "Joe Bloggs";
let myAge: number = 44;

let sentence: string = `Hello, my name is [blank_start]${myName}[blank_end]. I'm [blank_start]${myAge}[blank_end] years old.`;
1. A{myName}
2. B{$myName}
3. C${myName}
4. D$myName
5. E$myAge.toString()
6. F${myAge}
7. G{$myAge.toString()}
8. H{$myAge}
5The following code will output in the console:

enum make { Audi = 100, BMW = 200, Citroen=300, Ford, Holden, Hyundai, Jaguar, Kia, Lada }

let myCarMake: make = make.Ford;

console.info(myCarMake.toString());
1. AFord
2. B400
3. C301
4. Dsyntax error

Descripción: El usuario ha eliminado su información de asignaturas Test sobre Quiz: TypeScript. Basic Types and Variable Declarations., creado por Usuario eliminado el 25/04/2017.
Autor: Usuario eliminado
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Historial: Creado el 25 abr 2017 · actualizado el 25 abr 2017
Etiquetas: el usuario ha eliminado su información de asignaturas