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code academy : js復習 ②

Last updated at Posted at 2018-05-02

topics
Built-in Methods
Libraries
2つの comment out (//,/~~/)

##Built-in Methods
名前の通り、もともと作られているmethodsって事ですね
ググればたくさん出てくる

##Libraries

自分でinstanceを作成しなくても賢い人たちが
作ってくれている

そのinstanceが入っているのがLibraries
開発効率を効率よく使う事=開発効率up

##Comments
コードにコメントをつけるには"//"を使うか"/* ~~~~ */"

1ささっとコメント(一行で)

//メインタイトル
console.log("初めてのjs");

2がっつりコメント(ブロックで)

console.log("おはよう");
/*
おはようという言葉の語源は
お早く〜ですね、というお早くに由来
*/
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