回答編集履歴
2
while文版
answer
CHANGED
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@@ -21,17 +21,42 @@
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条件式の内容はどうでもよく、for文の外で条件式の真偽判定して代入値を制御したいパターン。
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```JavaScript
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-
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24
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+
function sample1 (array) {
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-
var result = array[0]; // 初期値を与える
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var result = array[0]; // 初期値を与える
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-
for (let value of array) {
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for (let value of array) {
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-
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if (value === 'fuga') {
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-
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result = 'fuga';
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-
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break;
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}
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}
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return result;
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}
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var array1 = ['hoge', 'fuga', 'piyo'],
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array2 = ['hoge', 'fuga2', 'piyo'];
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console.log(
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console.log(sample1(array1)); // "fuga"
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console.log(sample1(array2)); // "hoge"
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```
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`while` 文版。
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```JavaScript
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function sample2 (array) {
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var i = array.length;
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while (--i > 0 && array[i] !== 'fuga');
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return array[i];
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}
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var array1 = ['hoge', 'fuga', 'piyo'],
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array2 = ['hoge', 'fuga2', 'piyo'];
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console.log(sample2(array1)); // "fuga"
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console.log(sample2(array2)); // "hoge"
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```
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Re: yoshipu さん
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1
初期値を修正
answer
CHANGED
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@@ -22,7 +22,7 @@
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```JavaScript
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var array = ['hoge', 'fuga', 'piyo'];
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-
var result =
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var result = array[0]; // 初期値を与える
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for (let value of array) {
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if (value === 'fuga') {
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