回答編集履歴
6
訂正
test
CHANGED
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@@ -1,31 +1,29 @@
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1
1
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```javascript
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2
2
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3
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-
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3
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+
window.onload = () => {
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4
4
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5
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-
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5
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document.getElementById('test_id').addEventListener('blur', (e) => {
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6
6
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7
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-
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7
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let obj = e.target
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8
8
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9
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-
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9
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let key = obj.value;
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10
10
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11
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-
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11
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let a = null;
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12
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13
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-
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13
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Array.from(document.getElementById('test_list').children).forEach((opt) => {
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14
14
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15
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-
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15
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if(opt.value == key){
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16
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-
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a = opt.label;
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19
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-
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}
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20
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21
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-
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21
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});
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22
22
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23
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console.log(a);
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24
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25
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});
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26
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+
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23
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-
}
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27
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}
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24
28
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29
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```
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26
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-
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27
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-
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28
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-
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29
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-
##### 参考リンク
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30
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-
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31
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-
[element.getAttribute](https://developer.mozilla.org/ja/docs/Web/API/Element/getAttribute)
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5
誤字の修正
test
CHANGED
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@@ -6,7 +6,7 @@
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6
6
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7
7
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var a = ""
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8
8
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9
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-
for(opt of document.getElementById("test_list").children){
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9
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+
for(var opt of document.getElementById("test_list").children){
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10
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11
11
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if(opt.getAttribute("value")==key){
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12
12
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4
打ち間違いを訂正
test
CHANGED
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@@ -6,7 +6,7 @@
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6
6
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7
7
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var a = ""
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8
8
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9
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-
for(opt
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9
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+
for(opt of document.getElementById("test_list").children){
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10
10
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11
11
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if(opt.getAttribute("value")==key){
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12
12
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3
内容不足を訂正
test
CHANGED
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@@ -2,7 +2,21 @@
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2
2
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3
3
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function test() {
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4
4
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5
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-
var
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5
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+
var key = document.getElementById("test_id").getAttribute("value");
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6
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+
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7
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+
var a = ""
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8
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+
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9
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for(opt in document.getElementById("test_list").children){
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10
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+
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11
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if(opt.getAttribute("value")==key){
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12
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13
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a = opt.getAttribute("label")
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14
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15
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bleak;
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16
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+
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17
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}
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18
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19
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}
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6
20
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7
21
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console.log(a);
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8
22
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2
誤字の修正
test
CHANGED
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@@ -2,7 +2,7 @@
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2
2
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3
3
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function test() {
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4
4
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5
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-
var a = document.getElementById("test_id").getAttribute("l
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5
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+
var a = document.getElementById("test_id").getAttribute("value");
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6
6
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7
7
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console.log(a);
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8
8
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1
参考リンク追加
test
CHANGED
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@@ -9,3 +9,9 @@
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9
9
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}
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10
10
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11
11
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```
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12
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+
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13
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14
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+
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15
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+
##### 参考リンク
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16
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+
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17
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+
[element.getAttribute](https://developer.mozilla.org/ja/docs/Web/API/Element/getAttribute)
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