質問編集履歴
1
エラーを追記
title
CHANGED
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File without changes
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body
CHANGED
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@@ -14,4 +14,21 @@
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14
14
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console.log(lastInnerWidth);
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15
15
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console.log(boxSize);
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16
16
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});
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17
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+
```
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18
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+
```jsx
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19
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//TypeError: this.setState is not a functionになる
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20
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let map = document.getElementById("map");
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21
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var lastInnerWidth = map.clientWidth;
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22
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window.addEventListener("resize", function() {
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23
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if (lastInnerWidth != map.clientWidth) {
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24
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lastInnerWidth = map.clientWidth;
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25
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}
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26
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let boxSize = (lastInnerWidth - 100) / 5;
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27
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this.setState({
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28
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mapWidth: lastInnerWidth,
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29
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boxWidth: boxSize
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30
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});
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31
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console.log(this.state.mapWidth);
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32
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console.log(this.state.boxWidth);
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33
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});
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17
34
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```
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