jQuery如何循环超过1个兄弟元素

Question

我有一个 jQuery 项目，我必须遍历 h2 标头列表，但在每个 h2 标头中，我必须遍历它们的兄弟姐妹。每个标头有超过 1 个同级。现在我只知道如何去使用 .next() 函数的 1 个兄弟姐妹。有人可以帮我在不改变我初始代码方向的情况下遍历兄弟姐妹列表吗？

<script>
// Code Option 1
    function putSiblingsInTableForEachH2() {
        // line above sets function that will ultimately store siblings of each h2.toggler into a HTML table
        var siblingsGoInTable = [];
        // line creates empty array that will hold elements that will eventually go into HTML table
        var togglerHeaders = $("h2.toggler");
        // line above sets variable togglerHeaders to all h2 elements with a class of ".toggler"
        for (i = 0; i < togglerHeaders.length; i++) {
            // line above is a for loop that loops through variable togglerHeaders (for its entire length)
            var currentH2Element = togglerHeaders[i];
            // line above sets variable currentH2Element to togglerHeaders at position i
            // so when i starts at 0 currentH2Element is set to the first element in togglerHeaders which is the first h2.toggler
            for (j = 0; j < currentH2Element.nextAll(); j++) {
                if (currentH2Element.nextAll() !== currentH2Element.val()) {
                    $(siblingsGoInTable).wrapAll("<table></table>");
                } // line ends if statement
            } // line above closes for loop 
        } // line ends for loop
    } // line ends function
    putSiblingsInTableForEachH2();
    // line above actually runs function
</script>

Answer 1

您可以使用the .siblings() method 来实现此目的。

因此，这些方面的内容可能对您有用：

<script>
    function putSiblingsInTableForEachH2() {
        var siblingsGoInTable = [];

        var togglerHeaders = $("h2.toggler");

        for (var i = 0; i < togglerHeaders.length; i++) {

            var currentH2Element = togglerHeaders[i];

            // Access siblings like this
            var siblings = $(currentH2Element).siblings();

            for (var j = 0; j < siblings.length; j++) {

                var siblingToH2 = siblings[j];
                // Do what you need to do with sibling element here
            }
        }
    }

    putSiblingsInTableForEachH2();

</script>