正如问题所说,我如何使用jQuery添加一个新的选项到下拉列表?
谢谢
正如问题所说,我如何使用jQuery添加一个新的选项到下拉列表?
谢谢
目前,我引用其他类的方法与此Javadoc语法:
@see {@link com.my.package.Class#method()}
我从文档中了解到这是正确的方法。但现在到了有趣的部分,或者说令人沮丧的部分。当我生成这个javadoc时,我首先得到以下错误:
warning - Tag @see:illegal character: "123" in "{@link com.my.package.Class#method()}"
warning - Tag @see:illegal character: "64" in "{@link com.my.package.Class#method()}"
warning - Tag @see: reference not found: {@link com.my.package.Class#method()}
生成的HTML代码是:
"," <code>com.my.package.Class#method()}</code> ","
当然,我没有联系。 有人能告诉我发生了什么事吗,有什么解决办法吗?
根据ASCII表,字符123和64代表{和@,那么为什么这些字符无效时,这个语法是正确的,根据文档?
我在读CLRS的《算法导论》。在第二章中,作者提到了“循环不变量”。什么是循环不变量?
这是我的HTML:
<select id="ddlProducts" name="ddProducts">
<option>Product1 : Electronics </option>
<option>Product2 : Sports </option>
</select>
我想让产品的名称(即。'Product1', 'Product2',等等),以及它的类别(即。电子,体育等)斜体,只使用CSS。我发现了一个老问题,提到这是不可能使用HTML和CSS,但希望,现在有一个解决方案。
由于我使用Maven,我已经能够在我的本地存储库项目中构建和安装不完整的Javadoc标记(例如,缺少一个参数)。
However, since I migrated to Java 8 (1.8.0-ea-b90) Maven is absolutely strict about missing documentation tags and show me lots of Javadoc errors related to Javadoc problems when I try to build or install a project where the Javadoc is not "perfect". Some of the projects I am trying to compile and install in my local repository are third party projects from which I do not have control. So the workaround of just fixing all the Javadocs in all these projects does not seem to be feasable in my scenario.
这是我在我的项目中执行mvn清洁包安装时看到的输出的一小部分:
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.026s
[INFO] Finished at: Mon Apr 08 21:06:17 CEST 2013
[INFO] Final Memory: 27M/437M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:2.9:jar (attach-javadocs) on project jpc: MavenReportException: Error while creating archive:
[ERROR] Exit code: 1 - /Users/sergioc/Documents/workspaces/heal/jpc/src/main/java/org/jpc/engine/prolog/PrologDatabase.java:10: error: @param name not found
[ERROR] * @param terms the terms to assert
[ERROR] ^
[ERROR] /Users/sergioc/Documents/workspaces/heal/jpc/src/main/java/org/jpc/engine/prolog/PrologDatabase.java:11: warning: no description for @return
[ERROR] * @return
[ERROR] ^
在我的POM中,Javadoc Maven插件是这样配置的:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.9</version>
<executions>
<execution>
<id>attach-javadocs</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
正如我之前所说,如果我回到Java 7,一切都可以正常工作。 也许这是一个与Maven在Java 8中运行有关的错误? 我如何使用Java 8使其工作(即,能够构建项目的Javadoc并将其代码安装在我的本地存储库中)? 我已经在OSX中用Maven 3.0.3和3.0.5进行了测试。
更新:
如果我用<failOnError>false</failOnError>(谢谢Martin)更改我的Javadoc插件配置:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.9</version>
<executions>
<execution>
<id>attach-javadocs</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
然后将项目安装到本地存储库中。但是,仍然没有生成Javadoc JAR。
我在控制台中看到的这个新配置的输出片段是:
[ERROR] MavenReportException: Error while creating archive: Exit code: 1 - /Users/....java:18: warning: no @param ... Command line was: /Library/Java/Home/bin/javadoc @options @packages Refer to the generated Javadoc files in '/Users/sergioc/Documents/workspaces/heal/minitoolbox/target/apidocs' dir. at org.apache.maven.plugin.javadoc.AbstractJavadocMojo.executeJavadocCommandLine(AbstractJavadocMojo.java:5043) at org.apache.maven.plugin.javadoc.AbstractJavadocMojo.executeReport(AbstractJavadocMojo.java:1990) at org.apache.maven.plugin.javadoc.JavadocJar.execute(JavadocJar.java:181) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59) at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196) at org.apache.maven.cli.MavenCli.main(MavenCli.java:141) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:491) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
在使用Java 7时,是否有关于如何在一个步骤中构建源代码、安装项目和生成Javadoc JAR的解决方案?
我想从HTML <select>元素中删除下拉箭头。例如:
<select style="width:30px;-webkit-appearance: none;">
<option>2000</option>
<option>2001</option>
<option>2002</option>
...
</select>
在Opera、Firefox和ie浏览器中如何做到这一点?
正如问题所说,我如何使用jQuery设置下拉列表控件的值?
是否有一种方法可以从方法文档主体中添加对一个或多个方法参数的引用? 喜欢的东西:
/**
* When {@paramref a} is null, we rely on b for the discombobulation.
*
* @param a this is one of the parameters
* @param b another param
*/
void foo(String a, int b)
{...}
我有一个推特引导下拉菜单。所有Twitter Bootstrap用户都知道,下拉菜单在点击时关闭(甚至在里面点击)。
为了避免这种情况,我可以很容易地在下拉菜单上附加一个单击事件处理程序,并简单地添加著名的event. stoppropagation()。
<ul class="nav navbar-nav">
<li class="dropdown mega-dropdown">
<a href="javascript:;" class="dropdown-toggle" data-toggle="dropdown">
<i class="fa fa-list-alt"></i> Menu item 1
<span class="fa fa-chevron-down pull-right"></span>
</a>
<ul class="dropdown-menu mega-dropdown-menu">
<li>
<div id="carousel" class="carousel slide" data-ride="carousel">
<ol class="carousel-indicators">
<li data-slide-to="0" data-target="#carousel"></li>
<li class="active" data-slide-to="1" data-target="#carousel"></li>
</ol>
<div class="carousel-inner">
<div class="item">
<img alt="" class="img-rounded" src="img1.jpg">
</div>
<div class="item active">
<img alt="" class="img-rounded" src="img2.jpg">
</div>
</div>
<a data-slide="prev" role="button" href="#carousel"
class="left carousel-control">
<span class="glyphicon glyphicon-chevron-left"></span>
</a>
<a data-slide="next" role="button" href="#carousel"
class="right carousel-control">
<span class="glyphicon glyphicon-chevron-right"></span>
</a>
</div>
</li>
</ul>
</li>
</ul>
这看起来很简单,也是一种非常常见的行为,然而,由于carousel控件(以及carousel指示器)事件处理程序被委托给文档对象,这些元素上的单击事件(prev/next控件,…)将被“忽略”。
$('ul.dropdown-menu.mega-dropdown-menu').on('click', function(event){
// The event won't be propagated up to the document NODE and
// therefore delegated events won't be fired
event.stopPropagation();
});
依赖于Twitter Bootstrap下拉隐藏/隐藏事件不是一个解决方案,原因如下:
为两个事件处理程序提供的事件对象没有提供对所单击元素的引用 我无法控制下拉菜单内容,因此添加标志类或属性是不可能的
这个小提琴是正常的行为,这个小提琴是添加了event.stopPropagation()。
更新
谢谢罗曼的回答。我也找到了一个答案,你可以在下面找到。
大O符号O(n)和小O符号O(n)的区别是什么?