题解 | #数组扁平化#
数组扁平化
https://www.nowcoder.com/practice/5d7e0cf4634344c98e6ae4eaa2336bed
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
</head>
<body>
<script>
const _flatten = arr => {
// 补全代码
const result = []
arr.forEach(elem => {
if (Array.isArray(elem)) {
result.push(..._flatten(elem))
} else {
result.push(elem)
}
})
return result
}
</script>
</body>
</html>
干就完事了
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