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js 文字列を逆に並べるには?

Last updated at Posted at 2016-12-11

##文字列を逆に並べる

function reverseString(str) {
   //write your code.
 }
reverseString("hello");//olleh

出力結果 例

reverseString("hello") // "olleh".
reverseString("Howdy") // "ydwoH".
reverseString("Greetings from Earth") // "htraE morf sgniteerG".

##試したコード

function reverseString(str) {
   return str.split("").reverse().join("");
 }
reverseString("hello");//olleh

##考え方

split()で文字列を分割//["h", "e", "l", "l", "o"]
reverse()で逆に並べる。//["o", "l", "l", "e", "h"]
join("")で一緒にする。//olleh

もっと簡潔に美しくかけるよ! という方、コメントお待ちしております。

##参考リンク
split()
reverse()
join()

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