質問編集履歴
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コード以外の本文をコードブロックで括っていたので、外した。言語名も変更した。
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### 前提・実現したいこと
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初投稿です。どうぞよろしくお願いします!!
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HTMLでテーブルを表示し、マウスポインタがある行と列をハイライト(着色)させたいです。
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以下のサイトにあるjavascriptのコードを参考に実装を試みました。
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https://so-zou.jp/web-app/tech/programming/javascript/dom/node/element/html/table/#no9
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### 発生している問題・エラーメッセージ
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colgroupなどを設定し試みたのですが、どうしても期待通りに動作しません。
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以下、現在の状況です。
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https://gyazo.com/c7bb48b3edcd485fcd9321ba0c69dc54
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### 該当のソースコード
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```haml
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%table#home-table.home-table
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%tbody
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%tr
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%th.no{:rowspan => 2} No
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%th.name{:rowspan => 2} Name
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%th.pts{:rowspan => 2} PTS
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%th.fg{:colspan => 3} FG
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%th.twop{:colspan => 3} 2P
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%th.threep{:colspan => 3} 3P
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%th.ft{:colspan => 3} FT
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%th.reb{:colspan => 3} REB
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%th.as{:rowspan => 2} AS
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%th.to{:rowspan => 2} TO
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%th.st{:rowspan => 2} ST
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%th.bs{:rowspan => 2} BS
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%th.pf{:rowspan => 2} PF
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%tr
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%th.fgm M
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%th.fga A
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%th.fgp %
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%th.twopm M
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%th.twopa A
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%th.twopp %
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%th.threepm M
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%th.threepp %
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%th.ftm M
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%th.fta A
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%th.ftp %
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%th.or OR
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%th.dr DR
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%th.ttlreb Total
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- (1..18).each do |i|
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%tr
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%td.darkblue= 0
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%td.darkblue 山田太郎
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%td.blue= 0
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%td.blue= 0
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%td.blue= 0
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%td.blue= 0
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%td.lightblue= 0
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%td.lightblue= 0
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%td.blue= 0
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%td.lightblue= 0
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%td.lightblue= 0
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%td.blue 100%
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%td.lightblue= 0
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%td.lightblue= 0
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%td.blue= 0
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%td.lightblue= 0
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%td.lightblue= 0
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%td.blue= 0
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%td.lightblue= 0
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%td.lightblue= 0
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%td.lightblue= 0
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%td.lightblue= 0
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%td.lightblue= 0
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```
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```Javascript
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window.addEventListener( "DOMContentLoaded", function(){
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var TARGET_CLASS = 'home-table';
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var CELL_COLOR = 'gray';
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var tables = document.body.getElementsByTagName( 'table' );
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console.log(tables);
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for( var i = 0; i < tables.length; i++ )
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{
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if( tables[ i ].className.indexOf( TARGET_CLASS ) != -1 )
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{
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AttachHighlighting( tables[ i ] );
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}
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}
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function AttachHighlighting( table )
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{
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for( var i = 0; i < table.rows.length; i++ )
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{
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var cells = table.rows[ i ].cells;
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for( var k = 0; k < cells.length; k++ )
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{
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var cell = cells[ k ];
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if( cell.tagName != 'th' )
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{
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cell.onmouseover = function()
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{
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var row = this.parentNode;
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var table = row.parentNode.parentNode;
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var cols = table.getElementsByTagName( 'col' );
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for( var i = 0; i < row.cells.length; i++ )
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{
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cols[ i ].style.backgroundColor
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= ( row.cells[ i ] == this )? CELL_COLOR : '';
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}
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for( var i = 0; i < table.rows.length; i++ )
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{
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table.rows[ i ].style.backgroundColor
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= ( table.rows[ i ] == row )? CELL_COLOR : '';
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}
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}
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}
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}
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}
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var colgroups = table.getElementsByTagName( 'colgroup' );
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for( var i = 0; i < colgroups.length; i++ )
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{
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var colgroup = colgroups[ i ];
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var cols = colgroup.getElementsByTagName( 'col' );
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for( var k = cols.length; k < colgroup.span; k++ )
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{
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var col = document.createElement( 'col' );
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colgroup.appendChild( col );
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}
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}
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table.onmouseout = function()
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var cols = this.getElementsByTagName( 'col' );
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{
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cols[ i ].style.backgroundColor = '';
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}
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for( var i = 0; i < this.rows.length; i++ )
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this.rows[ i ].style.backgroundColor = '';
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}
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}
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}, false );
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```
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-
### 発生している問題・エラーメッセージ
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18
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```
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colgroupなどを設定し試みたのですが、どうしても期待通りに動作しません。
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以下、現在の状況です。
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https://gyazo.com/c7bb48b3edcd485fcd9321ba0c69dc54
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```
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### 該当のソースコード
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```HTML
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(hamlで書いてます)
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%table#home-table.home-table
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%colgroup{:span => 5}
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%tbody
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%tr
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%th.no{:rowspan => 2} No
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%th.name{:rowspan => 2} Name
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%th.pts{:rowspan => 2} PTS
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%th.fg{:colspan => 3} FG
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%th.twop{:colspan => 3} 2P
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%th.threep{:colspan => 3} 3P
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%th.ft{:colspan => 3} FT
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%th.reb{:colspan => 3} REB
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%th.as{:rowspan => 2} AS
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%th.st{:rowspan => 2} ST
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%tr
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%th.fgm M
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%th.fga A
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%th.fgp %
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%th.twopm M
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%th.twopa A
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%th.twopp %
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%th.threepm M
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%th.threepa A
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%th.threepp %
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%th.ftm M
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%th.fta A
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%th.ftp %
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101
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%th.or OR
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103
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%th.dr DR
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104
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-
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105
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%th.ttlreb Total
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107
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- (1..18).each do |i|
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109
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%tr
|
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110
|
-
|
|
111
|
-
%td.darkblue= 0
|
|
112
|
-
|
|
113
|
-
%td.darkblue 山田太郎
|
|
114
|
-
|
|
115
|
-
%td.blue= 0
|
|
116
|
-
|
|
117
|
-
%td.blue= 0
|
|
118
|
-
|
|
119
|
-
%td.blue= 0
|
|
120
|
-
|
|
121
|
-
%td.blue= 0
|
|
122
|
-
|
|
123
|
-
%td.lightblue= 0
|
|
124
|
-
|
|
125
|
-
%td.lightblue= 0
|
|
126
|
-
|
|
127
|
-
%td.blue= 0
|
|
128
|
-
|
|
129
|
-
%td.lightblue= 0
|
|
130
|
-
|
|
131
|
-
%td.lightblue= 0
|
|
132
|
-
|
|
133
|
-
%td.blue 100%
|
|
134
|
-
|
|
135
|
-
%td.lightblue= 0
|
|
136
|
-
|
|
137
|
-
%td.lightblue= 0
|
|
138
|
-
|
|
139
|
-
%td.blue= 0
|
|
140
|
-
|
|
141
|
-
%td.lightblue= 0
|
|
142
|
-
|
|
143
|
-
%td.lightblue= 0
|
|
144
|
-
|
|
145
|
-
%td.blue= 0
|
|
146
|
-
|
|
147
|
-
%td.lightblue= 0
|
|
148
|
-
|
|
149
|
-
%td.lightblue= 0
|
|
150
|
-
|
|
151
|
-
%td.lightblue= 0
|
|
152
|
-
|
|
153
|
-
%td.lightblue= 0
|
|
154
|
-
|
|
155
|
-
%td.lightblue= 0
|
|
156
|
-
|
|
157
|
-
```
|
|
158
|
-
|
|
159
|
-
```Javascript
|
|
160
|
-
|
|
161
|
-
window.addEventListener( "DOMContentLoaded", function(){
|
|
162
|
-
|
|
163
|
-
var TARGET_CLASS = 'home-table';
|
|
164
|
-
|
|
165
|
-
var CELL_COLOR = 'gray';
|
|
166
|
-
|
|
167
|
-
|
|
168
|
-
|
|
169
|
-
var tables = document.body.getElementsByTagName( 'table' );
|
|
170
|
-
|
|
171
|
-
console.log(tables);
|
|
172
|
-
|
|
173
|
-
for( var i = 0; i < tables.length; i++ )
|
|
174
|
-
|
|
175
|
-
{
|
|
176
|
-
|
|
177
|
-
if( tables[ i ].className.indexOf( TARGET_CLASS ) != -1 )
|
|
178
|
-
|
|
179
|
-
{
|
|
180
|
-
|
|
181
|
-
AttachHighlighting( tables[ i ] );
|
|
182
|
-
|
|
183
|
-
}
|
|
184
|
-
|
|
185
|
-
}
|
|
186
|
-
|
|
187
|
-
|
|
188
|
-
|
|
189
|
-
|
|
190
|
-
|
|
191
|
-
function AttachHighlighting( table )
|
|
192
|
-
|
|
193
|
-
{
|
|
194
|
-
|
|
195
|
-
for( var i = 0; i < table.rows.length; i++ )
|
|
196
|
-
|
|
197
|
-
{
|
|
198
|
-
|
|
199
|
-
var cells = table.rows[ i ].cells;
|
|
200
|
-
|
|
201
|
-
for( var k = 0; k < cells.length; k++ )
|
|
202
|
-
|
|
203
|
-
{
|
|
204
|
-
|
|
205
|
-
var cell = cells[ k ];
|
|
206
|
-
|
|
207
|
-
if( cell.tagName != 'th' )
|
|
208
|
-
|
|
209
|
-
{
|
|
210
|
-
|
|
211
|
-
cell.onmouseover = function()
|
|
212
|
-
|
|
213
|
-
{
|
|
214
|
-
|
|
215
|
-
var row = this.parentNode;
|
|
216
|
-
|
|
217
|
-
var table = row.parentNode.parentNode;
|
|
218
|
-
|
|
219
|
-
var cols = table.getElementsByTagName( 'col' );
|
|
220
|
-
|
|
221
|
-
|
|
222
|
-
|
|
223
|
-
for( var i = 0; i < row.cells.length; i++ )
|
|
224
|
-
|
|
225
|
-
{
|
|
226
|
-
|
|
227
|
-
cols[ i ].style.backgroundColor
|
|
228
|
-
|
|
229
|
-
= ( row.cells[ i ] == this )? CELL_COLOR : '';
|
|
230
|
-
|
|
231
|
-
}
|
|
232
|
-
|
|
233
|
-
|
|
234
|
-
|
|
235
|
-
for( var i = 0; i < table.rows.length; i++ )
|
|
236
|
-
|
|
237
|
-
{
|
|
238
|
-
|
|
239
|
-
table.rows[ i ].style.backgroundColor
|
|
240
|
-
|
|
241
|
-
= ( table.rows[ i ] == row )? CELL_COLOR : '';
|
|
242
|
-
|
|
243
|
-
}
|
|
244
|
-
|
|
245
|
-
}
|
|
246
|
-
|
|
247
|
-
}
|
|
248
|
-
|
|
249
|
-
}
|
|
250
|
-
|
|
251
|
-
}
|
|
252
|
-
|
|
253
|
-
|
|
254
|
-
|
|
255
|
-
var colgroups = table.getElementsByTagName( 'colgroup' );
|
|
256
|
-
|
|
257
|
-
for( var i = 0; i < colgroups.length; i++ )
|
|
258
|
-
|
|
259
|
-
{
|
|
260
|
-
|
|
261
|
-
var colgroup = colgroups[ i ];
|
|
262
|
-
|
|
263
|
-
var cols = colgroup.getElementsByTagName( 'col' );
|
|
264
|
-
|
|
265
|
-
|
|
266
|
-
|
|
267
|
-
for( var k = cols.length; k < colgroup.span; k++ )
|
|
268
|
-
|
|
269
|
-
{
|
|
270
|
-
|
|
271
|
-
var col = document.createElement( 'col' );
|
|
272
|
-
|
|
273
|
-
colgroup.appendChild( col );
|
|
274
|
-
|
|
275
|
-
}
|
|
276
|
-
|
|
277
|
-
}
|
|
278
|
-
|
|
279
|
-
|
|
280
|
-
|
|
281
|
-
table.onmouseout = function()
|
|
282
|
-
|
|
283
|
-
{
|
|
284
|
-
|
|
285
|
-
var cols = this.getElementsByTagName( 'col' );
|
|
286
|
-
|
|
287
|
-
for( var i = 0; i < cols.length; i++ )
|
|
288
|
-
|
|
289
|
-
{
|
|
290
|
-
|
|
291
|
-
cols[ i ].style.backgroundColor = '';
|
|
292
|
-
|
|
293
|
-
}
|
|
294
|
-
|
|
295
|
-
|
|
296
|
-
|
|
297
|
-
for( var i = 0; i < this.rows.length; i++ )
|
|
298
|
-
|
|
299
|
-
{
|
|
300
|
-
|
|
301
|
-
this.rows[ i ].style.backgroundColor = '';
|
|
302
|
-
|
|
303
|
-
}
|
|
304
|
-
|
|
305
|
-
}
|
|
306
|
-
|
|
307
|
-
}
|
|
308
|
-
|
|
309
|
-
|
|
310
|
-
|
|
311
|
-
}, false );
|
|
312
|
-
|
|
313
|
-
|
|
314
|
-
|
|
315
|
-
```
|
|
316
|
-
|
|
317
|
-
|
|
318
|
-
|
|
319
309
|
### メッセージ
|
|
320
310
|
|
|
321
|
-
```
|
|
322
|
-
|
|
323
311
|
非常に初歩的なところだと思いますが、何時間もつまづいてしまいました。
|
|
324
312
|
|
|
325
313
|
どなたかもしよければお願いします!
|
|
326
|
-
|
|
327
|
-
```
|