回答編集履歴
1
修正
test
CHANGED
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@@ -6,19 +6,15 @@
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6
6
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7
7
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クラスの区切りは空白文字なので、sections_aの後ろのカンマが悪さをします。
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8
8
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9
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-
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10
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-
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11
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-
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12
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-
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13
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-
こんな感じでHTMLCOllectionで掴んで、prototypeで調整
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9
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+
その上で、こんな感じでHTMLCOllectionで掴んで、prototypeで調整
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10
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15
11
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```javascript
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16
12
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13
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window.onload=function(){
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14
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19
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a.addEventListener('click',function(){console.log('sec_a');});
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15
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a.addEventListener('click',function(){console.log('sec_a');},true);
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20
16
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21
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b.addEventListener('click',function(){console.log('sec_b');});
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17
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b.addEventListener('click',function(){console.log('sec_b');},true);
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18
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}
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20
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@@ -28,11 +24,13 @@
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28
24
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25
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var b= document.getElementsByClassName('sections_b');
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26
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31
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-
HTMLCollection.prototype.addEventListener=function(x,y){
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27
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HTMLCollection.prototype.addEventListener=function(x,y,z){
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28
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29
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if(typeof z=="undefined") z=false;
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Array.prototype.map.call(this,function(i){
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35
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i.addEventListener(x,y);
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33
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i.addEventListener(x,y,z);
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34
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});
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@@ -44,6 +42,12 @@
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44
42
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45
43
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<div class="sections_a sections_b">test</div>
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46
44
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45
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+
<div class="sections_a">test2</div>
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46
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47
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<div class="sections_b">test3</div>
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48
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+
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47
49
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48
50
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49
51
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```
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52
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+
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53
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+
（一部調整しました）
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