从数组中删除虚假值

过滤掉虚假值：false, null, 0, "", undefined, NaN

JavaScript

const compact = arr => arr.filter(Boolean)

Examples

compact([0, 1, false, 2, '', 3, 'a', 'e' * 23, NaN, 's', 34])
// [ 1, 2, 3, 'a', 's', 34 ]