質問編集履歴
1
文法の修正
test
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File without changes
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test
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@@ -112,6 +112,70 @@
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```
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###試したこと
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```html
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120
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121
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//パターン1
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123
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function calcFn() { let scoreA = array.filter((_, x) => [0, 1, 3, 4, 7].includes(x)); let scoreB = array.filter((_, x) => [2, 5, 6, 8, 9].includes(x)); const reducer = (accumulator, currentValue) => accumulator + currentValue; let arrayA = scoreA.reduce(reducer); let arrayB = scoreB.reduce(reducer); let result = scoreA - scoreB; return result; }
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//パターン2
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NaN
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```
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```js
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//パターン1:innerHTML = calcFn;にした場合。
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btn.addEventListener('click', (event) => {
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event.preventDefault();
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if (array.length === 10) {
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alert('ok');
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document.getElementById('text').innerHTML = calcFn;
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} else {
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alert('全て選択してください');
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151
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}
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152
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});
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155
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//パターン2:innerHTML = calcFn();にした場合。
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btn.addEventListener('click', (event) => {
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event.preventDefault();
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if (array.length === 10) {
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alert('ok');
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document.getElementById('text').innerHTML = calcFn();
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} else {
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170
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alert('全て選択してください');
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}
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});
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```
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115
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### 補足情報（FW/ツールのバージョンなど）
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116
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117
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