rauschma

Cheat sheet: JavaScript Array methods

Deriving a new Array from an existing Array:

['■','●','▲'].slice(1, 3)          ⟼ ['●','▲']
['■','●','■'].filter(x => x==='■') ⟼ ['■','■']
    ['▲','●'].map(x => x+x)        ⟼ ['▲▲','●●']
    ['▲','●'].flatMap(x => [x,x])  ⟼ ['▲','▲','●','●']

zer4tul

提问的智慧

Eric Steven Raymond, Thyrsus Enterprises, < [email protected] >
Rick Moen, < [email protected] >

翻译：柯非, < [email protected] >

这篇译文基于2014.05.21更新的原文修订版3.10。

特别感谢王刚，此前本文的翻译是由他进行的。