プログラミング言語比較

出力結果

a_b_c

プログラム例

JavaScript

let str = "A-B-C";
console.log(str.replace(/-/g, "_").toLowerCase());

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PHP

<?php
$str = "A-B-C";
echo strtolower(preg_replace("/-/", "_", $str))."\n";

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Perl

my $str="A-B-C";
$str=~ s!-!_!gs;
print lc($str)."\n";

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Python

str = "A-B-C"
print(str.replace("-", "_").lower())

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Ruby

str = "A-B-C"
print(str.gsub("-", "_").downcase+"\n")

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