回答編集履歴
1
追記
answer
CHANGED
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@@ -36,4 +36,26 @@
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36
36
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*/
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37
37
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console.log( a.b.c.data )
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38
38
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// => {sample: "SAMPLE"}
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39
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```
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40
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追記）
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41
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42
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fetch の遅延を考える
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43
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44
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```javascript
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45
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/* omitted */
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46
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fetchData() {
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47
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fetch('sample.json')
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48
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.then(res => res.json())
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49
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.then( json => {
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50
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this.data = json;
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51
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if( "function" === typeof this.onload ) {
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52
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this.onload(this);
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53
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}
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54
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})
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55
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}
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56
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/* omitted */
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57
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const a = new A();
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58
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a.b.c.onload = function(c){
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59
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alert(JSON.stringify(c.data));
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60
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}
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39
61
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```
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