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プレーンのJavaScriptで配列を回したいときはfindが便利

こんな配列があります。

const fruit = ["apple", "banana", "mango"];

for分の場合

一致したものを取得したいときに以下のように書いていました。

const fruit = ["apple", "banana", "mango"];
const target = "mango"; 
for (var i = 0; i < fruit.length i++) {
  if (target === fruit[i] {
    console.log("mangoと一致!");
  }
}

findを使った場合

const fruit = [apple, banana, mango];
const target = mango; 
const found = fruit.find(element => element === target); // mango

まとめ

簡単にかつシンプルにコードを書けるようになるので便利です。

sventouz
VueとプレーンなJavaScriptを習得したいマン
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