JavaScript Arrays — Visual Guide

14 cards · methods & gotchas

01 · Array Basics

Array basics

02 · Read by Index

Read by index

03 · length & Last

length and last item

04 · Update by Index

Update by index

05 · push / pop

push and pop

06 · unshift / shift

unshift and shift

07 · includes

includes

08 · indexOf

indexOf

09 · map

map

10 · filter

filter

11 · find

find

12 · reduce

reduce

13 · some / every

some and every

14 · sort

sort

15 · Chaining

chaining filter then map