html文本框元素 [英] html text box element
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问题描述
是否可以使用javascript向HTML输入控件添加属性?我想添加一个包含文本框原始内容的属性,以验证它是否已被用户更改.现在,我正在使用隐藏控件,但我想使检查更改更容易.
Is it possible to use javascript to add a property to an HTML input control? I would like to add a property that would contain the original content of the text box to verify if it has been changed by the user. Now I am using a hidden control, but I would like to make it easier to check for a change.
推荐答案
已经有一个属性,其中包含从HTML-defaultValue
分配给文本输入和文本区域.
参见 http://www.w3.org/TR/DOM-Level -2-HTML/html.html#ID-26091157 [ ^ ]
There is already an attribute that contains the value that was assigned to text inputs and textareas from the HTML -defaultValue
.
See http://www.w3.org/TR/DOM-Level-2-HTML/html.html#ID-26091157[^]
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