破壊的/非破壊的なメソッド

by yshrkn

JavaScript

var letters_A = ["e", "a", "b"];
var letters_B = ["f", "c", "d"];
var allLetters = letters_A.concat(letters_B);
console.log("全てのアルファベット: " + allLetters);
console.log("concat後のletters_A: " + letters_A);
console.log("concat後のletters_B: " + letters_B);

console.log("ソート前のallLetters: " + allLetters);
var sortedArray = allLetters.sort();
console.log("ソート済みのアルファベット: " + sortedArray);
console.log("ソート前のallLetters: " + allLetters);