Learn about the HTMLElement.focus() method, including its syntax, code examples, specifications, and browser compatibility.
document.getElementById("setfocus").value=""; } function newChg(){ document.getElementById("setfocus").value="请输入关键字"; } </script> </head> <body> <input type="text" name="name" size="15" class="input" id="setfocus" value="请输入关键字" οnfοcus="chg()" οnblur="n...
Give focus to an element: document.getElementById("myAnchor").focus(); Try it Yourself » Give focus to a text field: document.getElementById("myText").focus(); Try it Yourself » Give focus to a text field when the document has been loaded: ...
该 Parent 属性返回 HtmlElement 嵌套当前元素所在的属性。通常需要访问基础元素上未直接公开HtmlElement的属性、属性和方法,例如SRC元素上的属性或Submit元素上的IMG``FORM方法。 通过 GetAttribute 和SetAttribute 方法,可以检索和更改特定元素上的任何属性或属性,同时 InvokeMember 提供对托管文档对...
focus() 方法用于赋予下拉列表焦点。 语法 selectObject.focus() 实例 下面的例子可为下拉列表设置焦点: <html> <head> <script type="text/javascript"> function setFocus() {document.getElementById('select1').focus()} </script> </head> <body> <form> <select id="select1"> <option>Apple</opti...
focus() 方法用于在密码域上设置焦点。 语法 passwordObject.focus() 实例 下面的例子可设置或移开密码域上的焦点: <html> <head> <script type="text/javascript"> function setFocus() {document.getElementById('password1').focus()} function loseFocus() {document.getElementById('password1').blur()...
Tests if the supplied object is equal to the current element. Focus() Puts user input focus on the current element. GetAttribute(String) Retrieves the value of the named attribute on the element. GetElementsByTagName(String) Retrieves a collection of elements represented in HTML by the spec...
<button onclick="document.getElementById('myDiv').focus()">点击将焦点设置到div上</button> <div id="myDiv" tabindex="0">这是一个可以获取焦点的div</div> </body> </html> 在上面的示例中,我们使用CSS样式定义了当<div>元素获得焦点时显示蓝色边框的效果,当用户点击按钮或将焦点移动到<div>元素...
DomHtmlDirectoryElement DomHtmlDivElement DomHtmlDListElement DomHtmlDocument DomHtmlElement DomHtmlEmbedElement DomHtmlFieldSetElement DomHtmlFontElement DomHtmlFormElement DomHtmlFrameElement DomHtmlFrameSetElement DomHtmlHeadElement DomHtmlHeadingElement DomHtmlHRElement DomHtmlHtmlElement DomHtmlIFrameElement Dom...
The <label> ElementThe <label> element defines a label for several form elements.The <label> element is useful for screen-reader users, because the screen-reader will read out loud the label when the user focus on the input element.