What ways can "this" take a value?

Within an object that has been constructed

A function invoked with .call, .apply, or bind

What does "this" refer to below? function helloWorld() { console.log("Hello world!"); console.log(this); }; helloWorld();

The window object in the global context of a normal function.

The function name "helloWorld()".

Both the global window object and its value

Quiz

doolezah 6 perguntas

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1What ways can "this" take a value?
1. AIn normal function calls
2. BWithin methods on objects
3. CWithin an object that has been constructed
4. DA function invoked with .call, .apply, or bind
2What does "this" refer to below?

function helloWorld() {
console.log("Hello world!");
console.log(this);
};

helloWorld();
1. AThe window object in the global context of a normal function.
2. BThe string "Hello world"
3. Cconsole.log
4. DThe function name "helloWorld()".
3What type of function is the one shown below?:

var City = function(name, state) [
this.name = name || 'Portland';
this.state = state || 'Oregon';
};
1. AConstructor Function
2. BGlobal Function
3. CLocal Function
4. DMal Function
4When a constructor function is used to create a new object, what does "this" refer to?
1. AThe object that is created.
2. BThe constructor function.
3. CThe global function.
4. DThe local function.
5What does "this" ALWAYS refer to and holds the value of?
1. AAn object
2. BA variable
3. CA function
4. DA procedure
6When used in a global function in a browser with strict mode, what does "this" refer to?
1. AThe global window object
2. BBoth the global window object and its value
3. CThe function
4. DGlobal variables

Descrição: Doctorate JavaScript Quiz sobre This, criado por doolezah em 10-07-2015.
Autor: doolezah
Idioma: English
Visualizações: 6
Etiquetas: javascript this javascript doctorate
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