javascript-methods Flashcards
Why do we log things to the console?
for debugging
What is a method?
a function that is a property of an object
How is a method different from any other function?
they exist as a property on an object
How do you remove the last element from an array?
pop.() method
How do you round a number down to the nearest integer?
Math.floor() method
How do you generate a random number?
Math.random() method
How do you delete an element from an array?
splice(), pop() and shift() method
How do you append an element to an array?
splice() method, unshift(), and push() method
How do you break a string up into an array?
split() method
Do string methods change the original string? How would you check if you weren’t sure?
it doesn’t; you can check by console logging
Roughly how many string methods are there according to the MDN Web docs?
a lot; around 40
Is the return value of a function or method useful in every situation?
no; you want a function that modifies and returns something
Roughly how many array methods are there according to the MDN Web docs?
a lot; more than 30
What three-letter acronym should you always include in your Google search about a JavaScript method or CSS property?
MDN
