こんなPromiseを書いたりしていませんか? Node.jsでJSを書いていて、非同期通信にPromiseを使うことはよくありますよね。 非同期なのでエラーになることも考えtry-chatch文を使って安全性にも配慮が必要です。 例えばこんなコードはどうでしょうか? コード例 try { await getPromiseResolve(); //←resolveするだけのPromise new Promise((resolve, reject)=>{ reject("[test]:promise reject"); }) .then((result) => { console.error("promise -> then : result =", {result}); }); } catch (error) { console.error("promise -> catch: error
![Promise.thenとasync/awaitは混ぜるな危険。まぎらわしくてcatch処理を書き忘れる](https://cdn-ak-scissors.b.st-hatena.com/image/square/533576731e8aa2d2b4bd4dd741c859f97807edb0/height=288;version=1;width=512/https%3A%2F%2Fres.cloudinary.com%2Fzenn%2Fimage%2Fupload%2Fs--r3kbQ3KX--%2Fc_fit%252Cg_north_west%252Cl_text%3Anotosansjp-medium.otf_55%3APromise.then%2525E3%252581%2525A8async%25252Fawait%2525E3%252581%2525AF%2525E6%2525B7%2525B7%2525E3%252581%25259C%2525E3%252582%25258B%2525E3%252581%2525AA%2525E5%25258D%2525B1%2525E9%252599%2525BA%2525E3%252580%252582%2525E3%252581%2525BE%2525E3%252581%25258E%2525E3%252582%252589%2525E3%252582%25258F%2525E3%252581%252597%2525E3%252581%25258F%2525E3%252581%2525A6catch%2525E5%252587%2525A6%2525E7%252590%252586%2525E3%252582%252592%2525E6%25259B%2525B8%2525E3%252581%25258D%2525E5%2525BF%252598%2525E3%252582%25258C%2525E3%252582%25258B%252Cw_1010%252Cx_90%252Cy_100%2Fg_south_west%252Cl_text%3Anotosansjp-medium.otf_37%3Aikezzz%252Cx_203%252Cy_121%2Fg_south_west%252Ch_90%252Cl_fetch%3AaHR0cHM6Ly9zdG9yYWdlLmdvb2dsZWFwaXMuY29tL3plbm4tdXNlci11cGxvYWQvYXZhdGFyLzJjNmE5MDBiNjUuanBlZw%3D%3D%252Cr_max%252Cw_90%252Cx_87%252Cy_95%2Fv1627283836%2Fdefault%2Fog-base-w1200-v2.png)