{"url":"https://www.letitride.jp/entry/2020/05/05/203742","blog_title":"\u8ffd\u61b6\u884c","categories":["\u30c6\u30c3\u30af","\u30c6\u30c3\u30af-Haskell"],"author_name":"letitride","height":"190","width":"100%","author_url":"https://blog.hatena.ne.jp/letitride/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.letitride.jp%2Fentry%2F2020%2F05%2F05%2F203742\" title=\"Haskell IO\u30a2\u30af\u30b7\u30e7\u30f3\u5165\u51fa\u529b\u306e\u5b66\u7fd2 - \u8ffd\u61b6\u884c\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"IO\u30a2\u30af\u30b7\u30e7\u30f3 IO\u30a2\u30af\u30b7\u30e7\u30f3\u306f\u5b9f\u884c\u3055\u308c\u308b\u3068\u526f\u4f5c\u7528\u3092\u542b\u3080\u52d5\u4f5c\u3092\u884c\u3044\u7d50\u679c\u3092\u8fd4\u3059\u3002\u7d50\u679c\u306b\u8fd4\u3059\u3079\u304d\u3082\u306e\u304c\u306a\u3044\u5834\u5408\u3001()\u7a7a\u306e\u30bf\u30d7\u30eb\u3001Unit\u3092\u8fd4\u3059\u3002 ghci> :t putStrLn putStrLn :: String -> IO () ghci> :t putStrLn \"Hello World\" putStrLn \"Hello World\" :: IO () \u306e\u3088\u3046\u306b\u3001putStrLn\u306f\u6587\u5b57\u5217\u3092\u53d7\u3051\u53d6\u308a\u3001\u526f\u4f5c\u7528\u3092\u4f34\u3046\u52d5\u4f5c\u3092\u884c\u3044Unit\u3092\u8fd4\u3059\u3002\u3068\u3044\u3046\u5b9a\u7fa9\u3068\u8aad\u3081\u308b\u3002 IO\u30a2\u30af\u30b7\u30e7\u30f3\u306fmain\u3068\u3044\u3046\u540d\u524d\u3092\u3064\u3051\u3066\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u8d77\u52d5\u3059\u308b\u3068\u5b9f\u884c\u3055\u308c\u308b\u3002 main = putStrLn \"hello, wor\u2026","blog_url":"https://www.letitride.jp/","type":"rich","version":"1.0","provider_name":"Hatena Blog","title":"Haskell IO\u30a2\u30af\u30b7\u30e7\u30f3\u5165\u51fa\u529b\u306e\u5b66\u7fd2","published":"2020-05-05 20:37:42","provider_url":"https://hatena.blog","image_url":null}