本文实例讲述了jQuery中slice()方法用法。分享给大家供大家参考。具体分析如下:
此方法可以选取匹配元素集的子集。
语法结构:
$(selector).slice(start, end)
参数列表:
实例代码:
实例一:
选取第一个元素
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="author" content="https://www.nhooo.com/" /> <title>呐喊教程</title> <script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("li").slice(0,1).css("color","red") }) </script> </head> <body> <div> <ul> <li>HTML专区</li> <li class="js">Javascript专区</li> <li>Div+Css专区</li> <li>Jquery专区</li> </ul> </div> </body> </html>
实例二:
选取前两个元素
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="author" content="https://www.nhooo.com/" /> <title>呐喊教程</title> <script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("li").slice(0,2).css("color","red") }) </script> </head> <body> <div> <ul> <li>HTML专区</li> <li class="js">Javascript专区</li> <li>Div+Css专区</li> <li>Jquery专区</li> </ul> </div> </body> </html>
实例三:
选取第二个元素
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="author" content="https://www.nhooo.com/" /> <title>呐喊教程</title> <script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("li").slice(1,2).css("color","red") }) </script> </head> <body> <div> <ul> <li>HTML专区</li> <li class="js">Javascript专区</li> <li>Div+Css专区</li> <li>Jquery专区</li> </ul> </div> </body> </html>
实例四:
选取最后一个元素
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="author" content="https://www.nhooo.com/" /> <title>呐喊教程</title> <script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("li").slice(-1).css("color","red") }) </script> </head> <body> <div> <ul> <li>HTML专区</li> <li class="js">Javascript专区</li> <li>Div+Css专区</li> <li>Jquery专区</li> </ul> </div> </body> </html>
希望本文所述对大家的jQuery程序设计有所帮助。