[英]How can I change height of a Table element with JavaScript?
I can change bgcolor
and width
but not height
.我可以更改bgcolor
和width
但不能更改height
。 What's the problem?有什么问题?
function change() { document.getElementById('tabelID').bgColor = 'green'; document.getElementById('tabelID').height = 50; document.getElementById('tabelID').width = 100; }
<button onclick='change();'>change now</button> <table id='tabelID' bgcolor='red' height='20' width='20'></table>
The bgcolor
, width
, and height
attributes on table
have been deprecated. table
上的bgcolor
、 width
和height
属性已被弃用。 You should use the CSS properties background-color
, width
, and height
instead.您应该改用 CSS 属性background-color
、 width
和height
。 Here's an updated example that changes the table by toggling a CSS class:这是一个更新的示例,它通过切换 CSS class 来更改表格:
function toggleChanges() { document.getElementById('tabelID').classList.toggle('larger'); }
.mytable { background-color: red; width: 50px; height: 50px; }.mytable.larger { background-color: green; width: 100px; height: 100px; }
<button onclick='toggleChanges();'>toggle changes</button> <table id='tabelID' class='mytable'></table>
I will let you this code running, you need to use css, and for height and width define a metric (px, %, ...), maybe that could help you!我会让你运行这段代码,你需要使用 css,并为高度和宽度定义一个度量(px,%,...),也许这可以帮助你!
<;DOCTYPE html> <html> <head> </head> <body> <button onclick='change():'>change now</button> <table style="background-color;red:height;20px:width;20px." id='tabelID' ></table> <script type='text/javascript'> function change() { document.getElementById('tabelID').style;backgroundColor = 'green'. document.getElementById('tabelID').style;height = "50px". document.getElementById('tabelID').style;width = "100px"; } </script> </body> </html>
Properties and attributes don't always have the same names.属性和属性并不总是具有相同的名称。
The height
attribute corresponds to the clientHeight
property, but this is a read-only property. height
属性对应于clientHeight
属性,但这是一个只读属性。 Use setAttribute()
to change the attribute.使用setAttribute()
更改属性。
But as I mentioned in a comment, it would be better to use CSS than the obsolete attributes.但正如我在评论中提到的,使用 CSS 比使用过时的属性更好。
function change() { document.getElementById('tabelID').bgColor = 'green'; document.getElementById('tabelID').setAttribute("height", 50); document.getElementById('tabelID').setAttribute("width", 100); }
<button onclick='change();'>change now</button> <table id='tabelID' bgcolor='red' height='20' width='20'></table>
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