Introduction to the usage of several event attributes-HTML Tutorial-php.cn

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Introduction to the usage of several event attributes

巴扎黑

Jun 16, 2017 pm 05:25 PM

event several kinds Attributes usage Related

Execute a section when the mouse pointer moves over the image JavaScript:

<img onmousemove="bigImg(this)" src="smiley.gif" alt="Smiley">

Copy after login

Definition and usage

The onmousemove attribute is triggered when the mouse pointer moves over the element.

Note: The onmousemove attribute does not apply to the following elements: , ,
, , , , <meta>, <param>, <script>, <style> or <title>. </p><p>Differences between HTML 4.01 and HTML5: None. </p><p>Syntax</p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><element onmousemove="script"></pre><div class="contentsignin">Copy after login</div></div><p>Attribute value Value Description</p><p>script The script that runs when onmousemove occurs. </p><p>Execute a piece of JavaScript when the text in the <input> element is selected: </p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><input type="text" onselect="showMsg() value="Hello world!"></pre><div class="contentsignin">Copy after login</div></div><p>Definition and usage</p><p>onselect attribute is triggered when the text in the element is selected. </p><p>onselect attribute can be used within the following elements: <input type="file">, <input type="password">, <input type="text">, <keygen&gt ; and <textarea>.</p><p>Differences between HTML 4.01 and HTML5</p><p>None. </p><p>Syntax</p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><element onselect="script"></pre><div class="contentsignin">Copy after login</div></div><p>Attribute value Value Description</p><p>script The script that runs when onselect occurs. </p><p style="margin: 0px; padding: 0px; border: 0px; font-size: 18px; color: rgb(63, 63, 63); font-family: 微软雅黑; white-space: normal; background-color: rgb(253, 252, 248);">Example</p><p>Execute a piece of JavaScript when the user presses a key: </p><p><input type="text" <a href="http://www.php.cn/wiki/1461.html" target="_blank">onkeypress</a>="<a href="http://www.php.cn/wiki/927.html" target="_blank">display</a>Result()"><br/></p><p>Definition and Usage</p><p>onkeypress property is triggered when the user presses a key (on the keyboard). </p><p>Tip: Event order relative to onkeypress events: </p><p><a href="http://www.php.cn/wiki/1460.html" target="_blank">onkeydown</a> onkeypress <a href="http://www.php.cn/wiki/1462.html" target="_blank">onkeyup</a></p><p>Notes: In any browser , the onkeypress event will not be triggered by all keys (such as ALT, CTRL, SHIFT, ESC). </p><p>Note: The onkeypress attribute is not applicable to the following elements: <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style> or <title>. </p><p>Differences between HTML 4.01 and HTML5</p><p>None. </p><p>Grammar</p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><element onkeypress="script"></pre><div class="contentsignin">Copy after login</div></div><p>The above is the detailed content of Introduction to the usage of several event attributes. 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It returns a Boolean value, 1 if the expression is NULL, 0 otherwise. The ISNULL() function can be used in the SELECT statement or for conditional judgment in the WHERE clause. 1. 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Among many mobile phone brands, Apple mobile phones have always been loved by users for their stable systems and powerful functions. Among them, the Apple shortcut command function makes users’ mobile phone experience more convenient and efficient. Apple Shortcuts is a feature launched by Apple for iOS12 and later versions. It helps users simplify their mobile phone operations by creating and executing custom commands to achieve more efficient work and</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/680687.html" title="Using the distinct keyword in parsing SQL" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/887/227/170826247656045.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Using the distinct keyword in parsing SQL" /> </a> <a href="https://www.php.cn/faq/680687.html" title="Using the distinct keyword in parsing SQL" class="phphistorical_Version2_mids_title">Using the distinct keyword in parsing SQL</a> <span class="Articlelist_txts_time">Feb 18, 2024 pm 09:21 PM</span> <p class="Articlelist_txts_p">Detailed explanation of distinct usage in SQL In SQL databases, we often encounter situations where we need to remove duplicate data. 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For example, the following is a normal select statement: SELECTcolumn_name</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/686661.html" title="How to implement change event binding of select elements in jQuery" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/465/014/170866513431708.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to implement change event binding of select elements in jQuery" /> </a> <a href="https://www.php.cn/faq/686661.html" title="How to implement change event binding of select elements in jQuery" class="phphistorical_Version2_mids_title">How to implement change event binding of select elements in jQuery</a> <span class="Articlelist_txts_time">Feb 23, 2024 pm 01:12 PM</span> <p class="Articlelist_txts_p">jQuery is a popular JavaScript library that can be used to simplify DOM manipulation, event handling, animation effects, etc. In web development, we often encounter situations where we need to change event binding on select elements. This article will introduce how to use jQuery to bind select element change events, and provide specific code examples. First, we need to create a dropdown menu with options using labels:</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/684570.html" title="bottom attribute syntax in CSS" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/465/014/170850061623520.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="bottom attribute syntax in CSS" /> </a> <a href="https://www.php.cn/faq/684570.html" title="bottom attribute syntax in CSS" class="phphistorical_Version2_mids_title">bottom attribute syntax in CSS</a> <span class="Articlelist_txts_time">Feb 21, 2024 pm 03:30 PM</span> <p class="Articlelist_txts_p">Bottom attribute syntax and code examples in CSS In CSS, the bottom attribute is used to specify the distance between an element and the bottom of the container. 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