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jquery Find new element code_jquery

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Release: 2016-05-16 18:23:37
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//html





    //js
    $('.dv').find('ul')->eq(0)->find('li')->each(function( i){
    var obj = $(this).find('a')->eq(0);
    $em = $('');//New em element
    $em.html(i);
    $em.insertBefore(obj);//Insert the new element in front of the found element
    });
    How convenient! ! ! !

    Questions about jQuery’s find method
    find(expr)
     
    Search for all elements that match the specified expression. This function is a great way to find out the descendant elements of the element being processed.
    All searches rely on jQuery expressions. This expression can be written using CSS1-3 selector syntax.

    Return value
    jQuery

    Parameters
    expr (String): Expression used to find

    Example
    Starting from all paragraphs, further Search for span elements below. Same as $("p span").
     
    HTML code:

    Hello, how are you?
    jQuery code:

    $("p").find("span")
    Result :
     
     [Hello]
    jquery query|jquery find element|jquery find object
    #id return value: Array#id
    Overview
    Matches an element based on the given ID.

    If the selector contains special characters, they can be escaped with two slashes. See examples.

    Parameters
    idString
    Used to search by the value given in the element's id attribute

    Example
    Description:
    Find the ID for "myDiv" elements.

    HTML code:

    id="notMe"


    id="myDiv"
    jQuery code:
    $ ("#myDiv");Result:
    [
    id="myDiv"
    ] Description:
    Find elements containing special characters

    HTML code:


    jQuery code:
    #foo\:bar
    #foo\[bar\]
    #foo\. barelement return value: Arrayelement overview matches all elements based on the given element name. Parameter elementString is an element used for search. The tag name pointing to the DOM node. Example description: Find a DIV element. HTML code:
    DIV1

    DIV2

    SPANjQuery code: $("div"); Result: [
    DIV1
    ,
    DIV2
    ].class Return value: Array.class Overview Matches elements according to the given class. Parameter classString is a class to search for. An element can have multiple classes, and it can be matched as long as one of them matches. Example description: Find all elements whose class is "myClass". HTML code:
    div class="notMe"

    div class="myClass"

    span class="myClass"jQuery code:$(".myClass"); Result:[
    div class="myClass"
    , span class="myClass" ] selector1, selector2,selectorN return value:Arrayselector1,selector2,selectorN Overview Merge the elements matched by each selector and return them together. You can specify as many selectors as you like and combine matching elements into a single result. Parameters selector1Selector A valid selector selector2Selector Another valid selector selectorN (optional) Selector Any number of valid selectors Example description: Find elements matching any class. HTML code:
    div

    p class="myClass"


    span

    p class="notMyClass"

    jQuery code: $("div,span,p.myClass") Result: [
    div
    ,

    p class="myClass"

    , span ]
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