回答編集履歴
1
追記
test
CHANGED
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@@ -35,3 +35,51 @@
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35
35
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console.log(res);
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36
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```
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# 追記
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42
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43
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上記ロジックを利用してObjectを拡張して汎用的に結果を得る
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45
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ただしprototypeの拡張は推奨されないことが多い
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```javascript
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48
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var boxs = {
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51
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a:"aaa",
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b:"bbb",
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c:"ccc",
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c2:"ccc",
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d:"ddd",
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e:"eee",
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};
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Object.prototype.myfilter=function(val){
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var res={};
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var self=this;
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Array.prototype.map.call(Object.keys(this),function(x){
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if(self[x]==val) res[x]=self[x];
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});
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return res;
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};
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console.log(boxs.myfilter("ccc"));
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```
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