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javascriptで文字列を掛け算する方法

Posted at 2022-03-13

概要

Javascriptで同じ文字列を掛け算して羅列する際に、Rubyとは記載方法が異なったためメモとして残しておきます。

記載方法

Rubyの場合

puts 'a' * 3
#=> aaa

Rubyの場合は単純に文字列に数字を掛ければ求められる。

Javascriptの場合

console.log('a'.repeat(3))
//=> aaa

Javascriptの場合はRubyのように単純な計算式ではなく、repeatメソッドを使います。

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