Sharing the solution to the failure of jquery mobile keyboard keyup-JS Tutorial-php.cn

Home

Web Front-end

JS Tutorial

Sharing the solution to the failure of jquery mobile keyboard keyup

黄舟

Jun 27, 2017 pm 02:23 PM

jquerykeyupInvalid

In a recent touch screen version project, I encountered the problem of monitoring the input value. Using keyup, it was no problem to press the other keys on the keyboard on the mobile phone, but the delete key could not be monitored. Find the solution below online.

(Original text from: http://blog.csdn.net/kongjiea/article/details/40186121)

The search box is based on the user The input value is retrieved in real time. At first, I naturally think of keyup. In Pinyin state , there is no problem.

Question 1: Switch to Chinese input Method, the problem came out, the keyup event was not working properly. Later, I searched on the Internet and found the idea,

Question 2: During the development of the WeChat public platform, a customer asked for "When entering content in the input box, a clear button will be displayed behind the input box to clear the content in the input box." When using the "keyup" event, some keyup events will occur under the Chinese input method. Invalid,

Method 1: Mainly register the focus event for the search box and retrieve it at intervals , post the code

<script language="javascript" type="text/javascript" src="jquery.js"></script>  
    <script>  
  
    $(function () {  
        $(&#39;#wd&#39;).bind(&#39;focus&#39;,filter_time);  
    })  
  
    var str = &#39;&#39;;  
    var now = &#39;&#39;  
    filter_time = function(){  
        var time = setInterval(filter_staff_from_exist, 100);  
        $(this).bind(&#39;blur&#39;,function(){  
            clearInterval(time);  
        });  
    };  
  
    filter_staff_from_exist = function(){  
        now = $.trim($(&#39;#wd&#39;).val());  
        if (now != &#39;&#39; && now != str) {  
            console.log(now);  
        }  
        str = now;  
    }  
    </script>

Method 2: Use input and propertychange events to solve the problem,

I can only use the dom2 binding method for testing Such asdocument.getElementById('box').addEventListener('input',function(){...dosomething...},false);

html>  
<head>  
<script type="text/javascript" src="http://www.zlovezl.cn/static/js/jquery-1.4.2.min.js"></script>  
</head>  
<body>  
    <p>  
        使用oninput以及onpropertychange事件检测文本框内容：  
    </p>  
    <p>  
        <input type="text" name="inputorp_i" id="inputorp_i" autocomplete="off"/>  
        <span id="inputorp_s"></span>  
        <script type="text/javascript">  
            //先判断浏览器是不是万恶的IE，没办法，写的东西也有IE使用者  
            var bind_name = &#39;input&#39;;  
            if (navigator.userAgent.indexOf("MSIE") != -1){  
                bind_name = &#39;propertychange&#39;;  
            }  
            $(&#39;#inputorp_i&#39;).bind(bind_name, function(){  
                $(&#39;#inputorp_s&#39;).text($(this).val());  
            })  
        </script>  
    </p>  
</body>  
</html>

But some people say to use jq method Binding can be as follows:

$(&#39;#input&#39;).bind(&#39;input propertychange&#39;, function() {  
                alert("....")  
            });

or native:

<script type="text/javascript">  
// Firefox, Google Chrome, Opera, Safari, Internet Explorer from version 9  
function OnInput (event) {  
    alert ("The new content: " + event.target.value);  
}  
// Internet Explorer  
function OnPropChanged (event) {  
    if (event.propertyName.toLowerCase () == "value") {  
        alert ("The new content: " + event.srcElement.value);  
    }  
}   
</script>  
  
<body>  
    <input type="text" oninput="OnInput (event)" onpropertychange="OnPropChanged (event)" value="Text field" />  
</body>

Finally, please note The is :oninput Both events, onpropertychange and onpropertychange, have a small bug in IE9, that is, they will not be triggered when deleting content through the cut and delete commands in the right-click menu. However, other versions of IE are normal, and it is not very good at the moment. s solution. However, oninput & onpropertychange is still the best way to monitor input box value changes..

The above is the detailed content of Sharing the solution to the failure of jquery mobile keyboard keyup. For more information, please follow other related articles on the PHP Chinese website!

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Javascript Data Types : Is there any difference between Browser and NodeJs?May 14, 2025 am 12:15 AM

JavaScript core data types are consistent in browsers and Node.js, but are handled differently from the extra types. 1) The global object is window in the browser and global in Node.js. 2) Node.js' unique Buffer object, used to process binary data. 3) There are also differences in performance and time processing, and the code needs to be adjusted according to the environment.

JavaScript Comments: A Guide to Using // and /* */May 13, 2025 pm 03:49 PM

JavaScriptusestwotypesofcomments:single-line(//)andmulti-line(//).1)Use//forquicknotesorsingle-lineexplanations.2)Use//forlongerexplanationsorcommentingoutblocksofcode.Commentsshouldexplainthe'why',notthe'what',andbeplacedabovetherelevantcodeforclari

Python vs. JavaScript: A Comparative Analysis for DevelopersMay 09, 2025 am 12:22 AM

The main difference between Python and JavaScript is the type system and application scenarios. 1. Python uses dynamic types, suitable for scientific computing and data analysis. 2. JavaScript adopts weak types and is widely used in front-end and full-stack development. The two have their own advantages in asynchronous programming and performance optimization, and should be decided according to project requirements when choosing.

Python vs. JavaScript: Choosing the Right Tool for the JobMay 08, 2025 am 12:10 AM

Whether to choose Python or JavaScript depends on the project type: 1) Choose Python for data science and automation tasks; 2) Choose JavaScript for front-end and full-stack development. Python is favored for its powerful library in data processing and automation, while JavaScript is indispensable for its advantages in web interaction and full-stack development.

Python and JavaScript: Understanding the Strengths of EachMay 06, 2025 am 12:15 AM

Python and JavaScript each have their own advantages, and the choice depends on project needs and personal preferences. 1. Python is easy to learn, with concise syntax, suitable for data science and back-end development, but has a slow execution speed. 2. JavaScript is everywhere in front-end development and has strong asynchronous programming capabilities. Node.js makes it suitable for full-stack development, but the syntax may be complex and error-prone.

JavaScript's Core: Is It Built on C or C ?May 05, 2025 am 12:07 AM

JavaScriptisnotbuiltonCorC ;it'saninterpretedlanguagethatrunsonenginesoftenwritteninC .1)JavaScriptwasdesignedasalightweight,interpretedlanguageforwebbrowsers.2)EnginesevolvedfromsimpleinterpreterstoJITcompilers,typicallyinC ,improvingperformance.

JavaScript Applications: From Front-End to Back-EndMay 04, 2025 am 12:12 AM

JavaScript can be used for front-end and back-end development. The front-end enhances the user experience through DOM operations, and the back-end handles server tasks through Node.js. 1. Front-end example: Change the content of the web page text. 2. Backend example: Create a Node.js server.

Python vs. JavaScript: Which Language Should You Learn?May 03, 2025 am 12:10 AM

Choosing Python or JavaScript should be based on career development, learning curve and ecosystem: 1) Career development: Python is suitable for data science and back-end development, while JavaScript is suitable for front-end and full-stack development. 2) Learning curve: Python syntax is concise and suitable for beginners; JavaScript syntax is flexible. 3) Ecosystem: Python has rich scientific computing libraries, and JavaScript has a powerful front-end framework.

See all articles

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

How to fix KB5055612 fails to install in Windows 10?

4 weeks agoByDDD

Roblox: Grow A Garden - Complete Mutation Guide

3 weeks agoByDDD

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys

4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Nordhold: Fusion System, Explained

4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook

3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Zend Studio 13.0.1

Powerful PHP integrated development environment

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

Hot Topics

1670

1428

1329

1276

1256