回答編集履歴
1
調整
test
CHANGED
|
@@ -31,3 +31,87 @@
|
|
|
31
31
|
<input name="color_name" type="text" id="color_name" value="">
|
|
32
32
|
|
|
33
33
|
```
|
|
34
|
+
|
|
35
|
+
|
|
36
|
+
|
|
37
|
+
# 調整版
|
|
38
|
+
|
|
39
|
+
入力欄に100、200、300のどれかを入れるとselectが変化し、表示欄に値が表示される
|
|
40
|
+
|
|
41
|
+
```javascript
|
|
42
|
+
|
|
43
|
+
<script>
|
|
44
|
+
|
|
45
|
+
HTMLElement.prototype.trigger=function(eventStr){
|
|
46
|
+
|
|
47
|
+
if (document.createEvent) {
|
|
48
|
+
|
|
49
|
+
var e = document.createEvent("HTMLEvents");
|
|
50
|
+
|
|
51
|
+
e.initEvent(eventStr, true, true );
|
|
52
|
+
|
|
53
|
+
return this.dispatchEvent(e);
|
|
54
|
+
|
|
55
|
+
} else {
|
|
56
|
+
|
|
57
|
+
var e = document.createEventObject();
|
|
58
|
+
|
|
59
|
+
return this.fireEvent("on"+eventStr, e);
|
|
60
|
+
|
|
61
|
+
}
|
|
62
|
+
|
|
63
|
+
};
|
|
64
|
+
|
|
65
|
+
window.addEventListener('DOMContentLoaded', function(e){
|
|
66
|
+
|
|
67
|
+
document.querySelector('#inp').addEventListener('keyup',function(e){
|
|
68
|
+
|
|
69
|
+
var v=e.target.value;
|
|
70
|
+
|
|
71
|
+
var c={"100":"red","200":"yellow","300":"blue"};
|
|
72
|
+
|
|
73
|
+
if(typeof c[v]!=="undefined"){
|
|
74
|
+
|
|
75
|
+
document.querySelector('#color').value=c[v];
|
|
76
|
+
|
|
77
|
+
}else {
|
|
78
|
+
|
|
79
|
+
document.querySelector('#color').value="";
|
|
80
|
+
|
|
81
|
+
}
|
|
82
|
+
|
|
83
|
+
document.querySelector('#color').trigger('change');
|
|
84
|
+
|
|
85
|
+
});
|
|
86
|
+
|
|
87
|
+
document.querySelector('#color').addEventListener('change',function(e){
|
|
88
|
+
|
|
89
|
+
var t=e.target;
|
|
90
|
+
|
|
91
|
+
document.querySelector('#color_name').value=t.selectedIndex==0?"":t.options[t.selectedIndex].textContent;
|
|
92
|
+
|
|
93
|
+
});
|
|
94
|
+
|
|
95
|
+
});
|
|
96
|
+
|
|
97
|
+
</script>
|
|
98
|
+
|
|
99
|
+
<select name="color" id="color">
|
|
100
|
+
|
|
101
|
+
<option value="">選択</option>
|
|
102
|
+
|
|
103
|
+
<option value="red">赤</option>
|
|
104
|
+
|
|
105
|
+
<option value="yellow">黄</option>
|
|
106
|
+
|
|
107
|
+
<option value="blue">青</option>
|
|
108
|
+
|
|
109
|
+
</select><br>
|
|
110
|
+
|
|
111
|
+
入力：<input type="text" id="inp" value=""><br>
|
|
112
|
+
|
|
113
|
+
表示：<input name="color_name" type="text" id="color_name" value="" readonly>
|
|
114
|
+
|
|
115
|
+
|
|
116
|
+
|
|
117
|
+
```
|