javascript-methods Flashcards

1
Q

Why do we log things to the console?

A

To see if the code ran right

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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

a method is actually an object reference to a function.

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4
Q

How do you remove the last element from an array?

A

The pop() method

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5
Q

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

A

Math.The floor()

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6
Q

How do you generate a random number?

A

Math.random()

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7
Q

How do you delete an element from an array?

A

splice() pass it the index

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8
Q

How do you append an element to an array?

A

push() or unshift()

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9
Q

How do you break a string up into an array?

A

split()

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10
Q

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

A

Use concle.log to check All string methods return a new string. They don’t modify the original string.

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11
Q

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

A

36

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12
Q

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

A

No, Examples of not needing would be splice,pop,shift

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13
Q

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

A

40

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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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