javascript-methods Flashcards

1
Q

Why do we log things to the console?

A

To see the value of the outcome while we are still building the application. Debugging it.

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2
Q

What is a method?

A

A method is a function which is a property of an object.

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3
Q

How is a method different from any other function?

A

Syntax. Method is used with an object.

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4
Q

How do you remove the last element from an array?

A

pop() method.

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5
Q

How do you round a number down to the nearest integer?

A

Using the Math.floor() function

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6
Q

How do you generate a random number?

A

Using the Math.random() function

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7
Q

How do you delete an element from an array?

A

With the splice() method

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8
Q

How do you append an element to an array?

A

With the push() method

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9
Q

How do you break a string up into an array?

A

With split() method and parameter deleteCount

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10
Q

Do string methods change the original string? How would you check if you weren’t sure?

A

String methods don’t change the original string.

One could check by writing the code/trying/experimenting.

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11
Q

Roughly how many string methods are there according to the MDN Web docs?

A

Many (we should look into the documentation - MDN documentation).

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12
Q

Is the return value of a function or method useful in every situation?

A

Not in every situation.

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13
Q

Roughly how many array methods are there according to the MDN Web docs?

A

Many (we should look into the documentation - MDN documentation).

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14
Q

What three-letter acronym should you always include in your Google search about a JavaScript method or CSS property?

A

MDN

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