javascript map filter (higher order) - tldr-cmd

javascript map filter (higher order)

code:_.js

2,3,4.filter((e) => e>2) // 3,4が返る

2,3,4.map((e) => e*3) // 6,9,12が返る

1,4,7.forEach(e => {console.log(e)})

list = list.filter((e,i) =>{return list.indexOf(e) == i}); // uniq

? javascript map filter (higher order)

javascript array loop