javascript-this Flashcards

1
Q

What is this in JavaScript?

A
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2
Q

What does it mean to say that this is an “implicit parameter”?

A
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3
Q

When is the value of this determined in a function; call time or definition time?

A
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4
Q

What does this refer to in the following code snippet?

var character = {
firstName: ‘Mario’,
greet: function () {
var message = ‘It's-a-me, ‘ + this.firstName + ‘!’;
console.log(message);
}
};

A
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5
Q

Given the above character obj,
what is the result of the following code snippet? Why?

character.greet();

A
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6
Q

Given the above character obj, what is the result of the following code snippet? Why?

var hello = character.greet;
hello();

A
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7
Q

How can you tell what the value of this will be for a particular function or method definition?

A
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