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Changed Basic Exercise in 1/functions
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‎docs/1-trial-session/10-array/_samples/array-printer-join/index.html‎

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‎docs/1-trial-session/10-array/_samples/array-printer-join/script.js‎

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‎docs/1-trial-session/10-array/_samples/array-printer/script.js‎

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docs/1-trial-session/10-array/_samples/array-printer/index.html renamed to docs/1-trial-session/10-array/_samples/array-sum/index.html

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<html lang="ja">
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<head>
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<meta charset="ja" />
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<title>配列表示関数 解答例</title>
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<title>配列の和 解答例</title>
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</head>
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<body>
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<script src="./script.js"></script>

‎docs/1-trial-session/10-array/_samples/array-sum/script.js‎

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const array1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
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const array2 = [-3, -1, 9, -10, 3, 7, 6, 1, 0, 5];
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function sumArray(array) {
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let sum = 0;
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for (let i = 0; i < array.length; i += 1) {
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sum += array[i];
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}
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return sum;
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}
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document.write(`sum of array1: ${sumArray(array1)} <br>`);
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document.write(`sum of array2: ${sumArray(array2)} <br>`);

‎docs/1-trial-session/10-array/index.md‎

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### 連続表示
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- 引数に与えられた配列の要素を、通常のfor文を使って順番に表示してみましょう。
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- 引数に与えられた配列の、要素の和を取る関数 `sumArray` を書いてみましょう。
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:::tip
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変数 `i` を `0` から `(作成した配列の長さ) - 1` まで順番に増やしながら、配列の `i` 番目の要素を表示しましょう。
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変数 `i` を `0` から `(作成した配列の長さ) - 1` まで順番に増やしながら、配列の `i` 番目の要素を足してみましょう。
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:::
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<Answer>
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```javascript
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const array = ["田中", "佐藤", "鈴木"];
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const array1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
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const array2 = [-3, -1, 9, -10, 3, 7, 6, 1, 0, 5];
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for (let i = 0; i < array.length; i += 1) {
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document.write(array[i]);
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function sumArray(array) {
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let sum = 0;
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for (let i = 0; i < array.length; i += 1) {
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sum += array[i];
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}
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return sum;
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}
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document.write(`sum of array1: ${sumArray(array1)} <br>`);
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document.write(`sum of array2: ${sumArray(array2)} <br>`);
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```
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<ViewSource url={import.meta.url} path="_samples/array-printer" />

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