JQuery escapeSelector()方法

jQuery中的escapeSelector()方法是用来转义具有特殊意义的字符或字符串的CSS选择器。它可以选择id('#ID1', '#ID2')的元素和class('.class1', '.class2')的元素。让我们借助几个例子来理解它。

语法:

jQuery.escapeSelector( selector )

参数：该方法接受单参数selector，其中包含一个要转义的选择器表达式的字符串（例如’#ID1’等）。

例子1：这个例子选择class = '.list'的元素。

<!DOCTYPE HTML>
<html>
  
<head>
    <title>
        jQuery escapeSelector() method
    </title>
  
    <script src=
"https://code.jquery.com/jquery-3.5.0.js">
    </script>
  
    <style>
        li {
            width: 150px;
            margin: 0 auto;
        }
  
        .highlight {
            background-color: green;
        }
    </style>
</head>
  
<body style="text-align:center;">
  
    <h1 style="color:green;">
        GeeksForGeeks
    </h1>
  
    <p id="GFG_UP"></p>
  
    <ul>
        <li class=".list">GFG_0</li>
        <li class=".list">GFG_1</li>
        <li class="list">GFG_2</li>
        <li class="list">GFG_3</li>
        <li class=".list">GFG_4</li>
    </ul>
    <br>
  
    <button onclick="Geeks()">
        Click here
    </button>
      
    <p id="GFG_DOWN"></p>
  
    <script>
        var elUp = document.getElementById("GFG_UP");
        var elDown = document.getElementById("GFG_DOWN");
  
        elUp.innerHTML = 
            "JQuery | escapeSelector() method";
  
        function Geeks() {
             $("ul").find("." +$ .escapeSelector(
                        ".list")).addClass("highlight");
  
            elDown.innerHTML = "The list elements of class"
                    + " '.list' are highlighted not the "
                    + "elements of class 'list'";
        } 
    </script>
</body>
  
</html>

输出:
JQuery escapeSelector()方法

例子2：这个例子选择ID='#list'的元素。

<!DOCTYPE HTML>
<html>
  
<head>
    <title>
        jQuery escapeSelector() method
    </title>
  
    <script src=
"https://code.jquery.com/jquery-3.5.0.js">
    </script>
  
    <style>
        li {
            width: 150px;
            margin: 0 auto;
        }
  
        .highlight {
            background-color: green;
        }
    </style>
</head>
  
<body style="text-align:center;">
  
    <h1 style="color:green;">
        GeeksForGeeks
    </h1>
  
    <p id="GFG_UP"></p>
  
    <ul>
        <li id="#list">GFG_0</li>
        <li>GFG_1</li>
        <li>GFG_2</li>
        <li>GFG_3</li>
        <li id="list">GFG_4</li>
    </ul>
    <br>
  
    <button onclick="Geeks()">
        Click here
    </button>
      
    <p id="GFG_DOWN"></p>
  
    <script>
        var elUp = document.getElementById("GFG_UP");
        var elDown = document.getElementById("GFG_DOWN");
        elUp.innerHTML = 
            "JQuery | escapeSelector() method";
  
        function Geeks() {
             $("ul").find("#" +$ .escapeSelector(
                    "#list")).addClass("highlight");
  
            elDown.innerHTML = "The list element of id"
                    + " '#list' is highlighted not the"
                    + " element of id 'list'";
        } 
    </script>
</body>
  
</html>

输出:
JQuery escapeSelector()方法