回答編集履歴
3
done
test
CHANGED
|
@@ -121,7 +121,3 @@
|
|
|
121
121
|
<component3 testFunc={this.func.bind(this} />
|
|
122
122
|
|
|
123
123
|
```
|
|
124
|
-
|
|
125
|
-
|
|
126
|
-
|
|
127
|
-
# #5
|
2
a
test
CHANGED
|
@@ -40,7 +40,7 @@
|
|
|
40
40
|
|
|
41
41
|
|
|
42
42
|
|
|
43
|
-
# 3
|
|
43
|
+
# #3
|
|
44
44
|
|
|
45
45
|
```
|
|
46
46
|
|
|
@@ -87,3 +87,41 @@
|
|
|
87
87
|
}
|
|
88
88
|
|
|
89
89
|
```
|
|
90
|
+
|
|
91
|
+
|
|
92
|
+
|
|
93
|
+
#4
|
|
94
|
+
|
|
95
|
+
```
|
|
96
|
+
|
|
97
|
+
<component3 testFunc={this.func} />
|
|
98
|
+
|
|
99
|
+
```
|
|
100
|
+
|
|
101
|
+
|
|
102
|
+
|
|
103
|
+
あと、これですと以下のようなエラーが出てしまうかと思います。
|
|
104
|
+
|
|
105
|
+
```
|
|
106
|
+
|
|
107
|
+
Cannot read property 'setState' of undefined
|
|
108
|
+
|
|
109
|
+
```
|
|
110
|
+
|
|
111
|
+
|
|
112
|
+
|
|
113
|
+
なので、thisを適切にbindしてあげる必要があります。
|
|
114
|
+
|
|
115
|
+
いろいろやり方はありますが、とりあえず以下で。
|
|
116
|
+
|
|
117
|
+
|
|
118
|
+
|
|
119
|
+
```
|
|
120
|
+
|
|
121
|
+
<component3 testFunc={this.func.bind(this} />
|
|
122
|
+
|
|
123
|
+
```
|
|
124
|
+
|
|
125
|
+
|
|
126
|
+
|
|
127
|
+
# #5
|
1
a
test
CHANGED
|
@@ -37,3 +37,53 @@
|
|
|
37
37
|
<component2 testProps={this.state} />
|
|
38
38
|
|
|
39
39
|
```
|
|
40
|
+
|
|
41
|
+
|
|
42
|
+
|
|
43
|
+
# 3
|
|
44
|
+
|
|
45
|
+
```
|
|
46
|
+
|
|
47
|
+
this.state = (
|
|
48
|
+
|
|
49
|
+
hoge: false
|
|
50
|
+
|
|
51
|
+
);
|
|
52
|
+
|
|
53
|
+
```
|
|
54
|
+
|
|
55
|
+
component1の上記部分ですが、これだと構文エラーが起きていませんか？
|
|
56
|
+
|
|
57
|
+
|
|
58
|
+
|
|
59
|
+
```
|
|
60
|
+
|
|
61
|
+
state = {
|
|
62
|
+
|
|
63
|
+
hoge: false
|
|
64
|
+
|
|
65
|
+
}
|
|
66
|
+
|
|
67
|
+
```
|
|
68
|
+
|
|
69
|
+
|
|
70
|
+
|
|
71
|
+
or
|
|
72
|
+
|
|
73
|
+
|
|
74
|
+
|
|
75
|
+
```
|
|
76
|
+
|
|
77
|
+
constructor(props) {
|
|
78
|
+
|
|
79
|
+
super(props);
|
|
80
|
+
|
|
81
|
+
this.state = {
|
|
82
|
+
|
|
83
|
+
hoge: false
|
|
84
|
+
|
|
85
|
+
}
|
|
86
|
+
|
|
87
|
+
}
|
|
88
|
+
|
|
89
|
+
```
|